Home / 12,800.11-17,656.98-7,493.91

Finding the Fourth Proportional to 12,800.11, 17,656.98 and 7,493.91

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Solution

The fourth proportional to 12,800.11, 17,656.98 and 7,493.91 is: 10,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.11 : 17,656.98 = 7,493.91 : x
  2. Step 2: Convert to fraction form
    12,800.11/17,656.98 = 7,493.91/x
  3. Step 3: Cross multiply
    12,800.11x = 17,656.98 × 7,493.91
  4. Step 4: Simplify right side
    12,800.11x = 132,319,818.99
  5. Step 5: Solve for x
    x = 132,319,818.99/12,800.11
  6. Step 6: Final answer
    x = 10,337.40

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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.