Home / 7,498.29-10,339.87-6,439.56

Finding the Fourth Proportional to 7,498.29, 10,339.87 and 6,439.56

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Solution

The fourth proportional to 7,498.29, 10,339.87 and 6,439.56 is: 8,879.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,498.29 : 10,339.87 = 6,439.56 : x
  2. Step 2: Convert to fraction form
    7,498.29/10,339.87 = 6,439.56/x
  3. Step 3: Cross multiply
    7,498.29x = 10,339.87 × 6,439.56
  4. Step 4: Simplify right side
    7,498.29x = 66,584,213.26
  5. Step 5: Solve for x
    x = 66,584,213.26/7,498.29
  6. Step 6: Final answer
    x = 8,879.92

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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.