Home / 10,445.90-15,668.84-5,248.13

Finding the Fourth Proportional to 10,445.90, 15,668.84 and 5,248.13

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Solution

The fourth proportional to 10,445.90, 15,668.84 and 5,248.13 is: 7,872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.90 : 15,668.84 = 5,248.13 : x
  2. Step 2: Convert to fraction form
    10,445.90/15,668.84 = 5,248.13/x
  3. Step 3: Cross multiply
    10,445.90x = 15,668.84 × 5,248.13
  4. Step 4: Simplify right side
    10,445.90x = 82,232,044.05
  5. Step 5: Solve for x
    x = 82,232,044.05/10,445.90
  6. Step 6: Final answer
    x = 7,872.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.