Home / 15,693.28-21,656.63-8,523.11

Finding the Fourth Proportional to 15,693.28, 21,656.63 and 8,523.11

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Solution

The fourth proportional to 15,693.28, 21,656.63 and 8,523.11 is: 11,761.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.28 : 21,656.63 = 8,523.11 : x
  2. Step 2: Convert to fraction form
    15,693.28/21,656.63 = 8,523.11/x
  3. Step 3: Cross multiply
    15,693.28x = 21,656.63 × 8,523.11
  4. Step 4: Simplify right side
    15,693.28x = 184,581,915.17
  5. Step 5: Solve for x
    x = 184,581,915.17/15,693.28
  6. Step 6: Final answer
    x = 11,761.85

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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.