Home / 25,761.09-38,644.85-9,117.80

Finding the Fourth Proportional to 25,761.09, 38,644.85 and 9,117.80

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Solution

The fourth proportional to 25,761.09, 38,644.85 and 9,117.80 is: 13,677.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,761.09 : 38,644.85 = 9,117.80 : x
  2. Step 2: Convert to fraction form
    25,761.09/38,644.85 = 9,117.80/x
  3. Step 3: Cross multiply
    25,761.09x = 38,644.85 × 9,117.80
  4. Step 4: Simplify right side
    25,761.09x = 352,356,013.33
  5. Step 5: Solve for x
    x = 352,356,013.33/25,761.09
  6. Step 6: Final answer
    x = 13,677.84

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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.