Home / 12,561.40-17,332.08-7,254.80

Finding the Fourth Proportional to 12,561.40, 17,332.08 and 7,254.80

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Solution

The fourth proportional to 12,561.40, 17,332.08 and 7,254.80 is: 10,010.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.40 : 17,332.08 = 7,254.80 : x
  2. Step 2: Convert to fraction form
    12,561.40/17,332.08 = 7,254.80/x
  3. Step 3: Cross multiply
    12,561.40x = 17,332.08 × 7,254.80
  4. Step 4: Simplify right side
    12,561.40x = 125,740,773.98
  5. Step 5: Solve for x
    x = 125,740,773.98/12,561.40
  6. Step 6: Final answer
    x = 10,010.09

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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.