Home / 12,656.48-17,465.58-6,991.12

Finding the Fourth Proportional to 12,656.48, 17,465.58 and 6,991.12

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Solution

The fourth proportional to 12,656.48, 17,465.58 and 6,991.12 is: 9,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.48 : 17,465.58 = 6,991.12 : x
  2. Step 2: Convert to fraction form
    12,656.48/17,465.58 = 6,991.12/x
  3. Step 3: Cross multiply
    12,656.48x = 17,465.58 × 6,991.12
  4. Step 4: Simplify right side
    12,656.48x = 122,103,921.99
  5. Step 5: Solve for x
    x = 122,103,921.99/12,656.48
  6. Step 6: Final answer
    x = 9,647.55

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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.