Home / 15,524.40-21,428.28-9,564.60

Finding the Fourth Proportional to 15,524.40, 21,428.28 and 9,564.60

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Solution

The fourth proportional to 15,524.40, 21,428.28 and 9,564.60 is: 13,201.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,524.40 : 21,428.28 = 9,564.60 : x
  2. Step 2: Convert to fraction form
    15,524.40/21,428.28 = 9,564.60/x
  3. Step 3: Cross multiply
    15,524.40x = 21,428.28 × 9,564.60
  4. Step 4: Simplify right side
    15,524.40x = 204,952,926.89
  5. Step 5: Solve for x
    x = 204,952,926.89/15,524.40
  6. Step 6: Final answer
    x = 13,201.99

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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.