Home / 14,603.28-20,151.36-8,635.20

Finding the Fourth Proportional to 14,603.28, 20,151.36 and 8,635.20

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Solution

The fourth proportional to 14,603.28, 20,151.36 and 8,635.20 is: 11,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,603.28 : 20,151.36 = 8,635.20 : x
  2. Step 2: Convert to fraction form
    14,603.28/20,151.36 = 8,635.20/x
  3. Step 3: Cross multiply
    14,603.28x = 20,151.36 × 8,635.20
  4. Step 4: Simplify right side
    14,603.28x = 174,011,023.87
  5. Step 5: Solve for x
    x = 174,011,023.87/14,603.28
  6. Step 6: Final answer
    x = 11,915.89

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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.