Home / 13,658.88-20,473.20-5,337.36

Finding the Fourth Proportional to 13,658.88, 20,473.20 and 5,337.36

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Solution

The fourth proportional to 13,658.88, 20,473.20 and 5,337.36 is: 8,000.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,658.88 : 20,473.20 = 5,337.36 : x
  2. Step 2: Convert to fraction form
    13,658.88/20,473.20 = 5,337.36/x
  3. Step 3: Cross multiply
    13,658.88x = 20,473.20 × 5,337.36
  4. Step 4: Simplify right side
    13,658.88x = 109,272,838.75
  5. Step 5: Solve for x
    x = 109,272,838.75/13,658.88
  6. Step 6: Final answer
    x = 8,000.13

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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.