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Finding the Fourth Proportional to 25,165.80, 37,748.56 and 6,445.80

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Solution

The fourth proportional to 25,165.80, 37,748.56 and 6,445.80 is: 9,668.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,165.80 : 37,748.56 = 6,445.80 : x
  2. Step 2: Convert to fraction form
    25,165.80/37,748.56 = 6,445.80/x
  3. Step 3: Cross multiply
    25,165.80x = 37,748.56 × 6,445.80
  4. Step 4: Simplify right side
    25,165.80x = 243,319,668.05
  5. Step 5: Solve for x
    x = 243,319,668.05/25,165.80
  6. Step 6: Final answer
    x = 9,668.66

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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.