Home / 7,539.78-11,309.76-4,098.90

Finding the Fourth Proportional to 7,539.78, 11,309.76 and 4,098.90

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Solution

The fourth proportional to 7,539.78, 11,309.76 and 4,098.90 is: 6,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.78 : 11,309.76 = 4,098.90 : x
  2. Step 2: Convert to fraction form
    7,539.78/11,309.76 = 4,098.90/x
  3. Step 3: Cross multiply
    7,539.78x = 11,309.76 × 4,098.90
  4. Step 4: Simplify right side
    7,539.78x = 46,357,575.26
  5. Step 5: Solve for x
    x = 46,357,575.26/7,539.78
  6. Step 6: Final answer
    x = 6,148.40

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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.