Home / 12,501.52-17,252.10-7,123.80

Finding the Fourth Proportional to 12,501.52, 17,252.10 and 7,123.80

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Solution

The fourth proportional to 12,501.52, 17,252.10 and 7,123.80 is: 9,830.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.52 : 17,252.10 = 7,123.80 : x
  2. Step 2: Convert to fraction form
    12,501.52/17,252.10 = 7,123.80/x
  3. Step 3: Cross multiply
    12,501.52x = 17,252.10 × 7,123.80
  4. Step 4: Simplify right side
    12,501.52x = 122,900,601.39
  5. Step 5: Solve for x
    x = 122,900,601.39/12,501.52
  6. Step 6: Final answer
    x = 9,830.85

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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.