Home / 9,665.63-13,330.98-6,477.85

Finding the Fourth Proportional to 9,665.63, 13,330.98 and 6,477.85

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Solution

The fourth proportional to 9,665.63, 13,330.98 and 6,477.85 is: 8,934.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665.63 : 13,330.98 = 6,477.85 : x
  2. Step 2: Convert to fraction form
    9,665.63/13,330.98 = 6,477.85/x
  3. Step 3: Cross multiply
    9,665.63x = 13,330.98 × 6,477.85
  4. Step 4: Simplify right side
    9,665.63x = 86,356,067.96
  5. Step 5: Solve for x
    x = 86,356,067.96/9,665.63
  6. Step 6: Final answer
    x = 8,934.35

Related Problems

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Half scale
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Double scale
Find fourth proportional to 9,666.63, 13,332.36 and 6,478.85
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.