Home / 11,221.47-15,477.08-8,577.63

Finding the Fourth Proportional to 11,221.47, 15,477.08 and 8,577.63

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Solution

The fourth proportional to 11,221.47, 15,477.08 and 8,577.63 is: 11,830.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.47 : 15,477.08 = 8,577.63 : x
  2. Step 2: Convert to fraction form
    11,221.47/15,477.08 = 8,577.63/x
  3. Step 3: Cross multiply
    11,221.47x = 15,477.08 × 8,577.63
  4. Step 4: Simplify right side
    11,221.47x = 132,756,622.83
  5. Step 5: Solve for x
    x = 132,756,622.83/11,221.47
  6. Step 6: Final answer
    x = 11,830.59

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Half scale
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Double scale
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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.