Home / 15,554.64-21,475.08-9,892.56

Finding the Fourth Proportional to 15,554.64, 21,475.08 and 9,892.56

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Solution

The fourth proportional to 15,554.64, 21,475.08 and 9,892.56 is: 13,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.64 : 21,475.08 = 9,892.56 : x
  2. Step 2: Convert to fraction form
    15,554.64/21,475.08 = 9,892.56/x
  3. Step 3: Cross multiply
    15,554.64x = 21,475.08 × 9,892.56
  4. Step 4: Simplify right side
    15,554.64x = 212,443,517.40
  5. Step 5: Solve for x
    x = 212,443,517.40/15,554.64
  6. Step 6: Final answer
    x = 13,657.89

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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.