Home / 10,445.40-15,668.16-2,654.22

Finding the Fourth Proportional to 10,445.40, 15,668.16 and 2,654.22

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Solution

The fourth proportional to 10,445.40, 15,668.16 and 2,654.22 is: 3,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.40 : 15,668.16 = 2,654.22 : x
  2. Step 2: Convert to fraction form
    10,445.40/15,668.16 = 2,654.22/x
  3. Step 3: Cross multiply
    10,445.40x = 15,668.16 × 2,654.22
  4. Step 4: Simplify right side
    10,445.40x = 41,586,743.64
  5. Step 5: Solve for x
    x = 41,586,743.64/10,445.40
  6. Step 6: Final answer
    x = 3,981.35

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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.