Home / 10,147.87-14,001.42-6,169.15

Finding the Fourth Proportional to 10,147.87, 14,001.42 and 6,169.15

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Solution

The fourth proportional to 10,147.87, 14,001.42 and 6,169.15 is: 8,511.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.87 : 14,001.42 = 6,169.15 : x
  2. Step 2: Convert to fraction form
    10,147.87/14,001.42 = 6,169.15/x
  3. Step 3: Cross multiply
    10,147.87x = 14,001.42 × 6,169.15
  4. Step 4: Simplify right side
    10,147.87x = 86,376,860.19
  5. Step 5: Solve for x
    x = 86,376,860.19/10,147.87
  6. Step 6: Final answer
    x = 8,511.82

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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.