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Finding the Fourth Proportional to 7,539, 10,403.82 and 4,394.58

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Solution

The fourth proportional to 7,539, 10,403.82 and 4,394.58 is: 6,064.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539 : 10,403.82 = 4,394.58 : x
  2. Step 2: Convert to fraction form
    7,539/10,403.82 = 4,394.58/x
  3. Step 3: Cross multiply
    7,539x = 10,403.82 × 4,394.58
  4. Step 4: Simplify right side
    7,539x = 45,720,419.30
  5. Step 5: Solve for x
    x = 45,720,419.30/7,539
  6. Step 6: Final answer
    x = 6,064.52

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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.