Home / 10,909.49-15,051.52-6,371.16

Finding the Fourth Proportional to 10,909.49, 15,051.52 and 6,371.16

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Solution

The fourth proportional to 10,909.49, 15,051.52 and 6,371.16 is: 8,790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.49 : 15,051.52 = 6,371.16 : x
  2. Step 2: Convert to fraction form
    10,909.49/15,051.52 = 6,371.16/x
  3. Step 3: Cross multiply
    10,909.49x = 15,051.52 × 6,371.16
  4. Step 4: Simplify right side
    10,909.49x = 95,895,642.16
  5. Step 5: Solve for x
    x = 95,895,642.16/10,909.49
  6. Step 6: Final answer
    x = 8,790.11

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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.