Home / 13,630.52-20,428.68-5,830.16

Finding the Fourth Proportional to 13,630.52, 20,428.68 and 5,830.16

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Solution

The fourth proportional to 13,630.52, 20,428.68 and 5,830.16 is: 8,737.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.52 : 20,428.68 = 5,830.16 : x
  2. Step 2: Convert to fraction form
    13,630.52/20,428.68 = 5,830.16/x
  3. Step 3: Cross multiply
    13,630.52x = 20,428.68 × 5,830.16
  4. Step 4: Simplify right side
    13,630.52x = 119,102,472.99
  5. Step 5: Solve for x
    x = 119,102,472.99/13,630.52
  6. Step 6: Final answer
    x = 8,737.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.