Home / 10,909.48-15,063.96-8,893.21

Finding the Fourth Proportional to 10,909.48, 15,063.96 and 8,893.21

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Solution

The fourth proportional to 10,909.48, 15,063.96 and 8,893.21 is: 12,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.48 : 15,063.96 = 8,893.21 : x
  2. Step 2: Convert to fraction form
    10,909.48/15,063.96 = 8,893.21/x
  3. Step 3: Cross multiply
    10,909.48x = 15,063.96 × 8,893.21
  4. Step 4: Simplify right side
    10,909.48x = 133,966,959.71
  5. Step 5: Solve for x
    x = 133,966,959.71/10,909.48
  6. Step 6: Final answer
    x = 12,279.87

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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.