Home / 7,419.30-10,239.14-4,275.70

Finding the Fourth Proportional to 7,419.30, 10,239.14 and 4,275.70

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Solution

The fourth proportional to 7,419.30, 10,239.14 and 4,275.70 is: 5,900.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.30 : 10,239.14 = 4,275.70 : x
  2. Step 2: Convert to fraction form
    7,419.30/10,239.14 = 4,275.70/x
  3. Step 3: Cross multiply
    7,419.30x = 10,239.14 × 4,275.70
  4. Step 4: Simplify right side
    7,419.30x = 43,779,490.90
  5. Step 5: Solve for x
    x = 43,779,490.90/7,419.30
  6. Step 6: Final answer
    x = 5,900.76

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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.