Home / 10,061.15-13,878.08-6,480.75

Finding the Fourth Proportional to 10,061.15, 13,878.08 and 6,480.75

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Solution

The fourth proportional to 10,061.15, 13,878.08 and 6,480.75 is: 8,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,061.15 : 13,878.08 = 6,480.75 : x
  2. Step 2: Convert to fraction form
    10,061.15/13,878.08 = 6,480.75/x
  3. Step 3: Cross multiply
    10,061.15x = 13,878.08 × 6,480.75
  4. Step 4: Simplify right side
    10,061.15x = 89,940,306.82
  5. Step 5: Solve for x
    x = 89,940,306.82/10,061.15
  6. Step 6: Final answer
    x = 8,939.37

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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.