Home / 10,061.89-13,890.41-6,287.16

Finding the Fourth Proportional to 10,061.89, 13,890.41 and 6,287.16

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Solution

The fourth proportional to 10,061.89, 13,890.41 and 6,287.16 is: 8,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,061.89 : 13,890.41 = 6,287.16 : x
  2. Step 2: Convert to fraction form
    10,061.89/13,890.41 = 6,287.16/x
  3. Step 3: Cross multiply
    10,061.89x = 13,890.41 × 6,287.16
  4. Step 4: Simplify right side
    10,061.89x = 87,331,230.14
  5. Step 5: Solve for x
    x = 87,331,230.14/10,061.89
  6. Step 6: Final answer
    x = 8,679.41

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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.