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Finding the Fourth Proportional to 7,526.78, 10,387 and 4,169.52

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Solution

The fourth proportional to 7,526.78, 10,387 and 4,169.52 is: 5,753.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,526.78 : 10,387 = 4,169.52 : x
  2. Step 2: Convert to fraction form
    7,526.78/10,387 = 4,169.52/x
  3. Step 3: Cross multiply
    7,526.78x = 10,387 × 4,169.52
  4. Step 4: Simplify right side
    7,526.78x = 43,308,804.24
  5. Step 5: Solve for x
    x = 43,308,804.24/7,526.78
  6. Step 6: Final answer
    x = 5,753.96

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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.