Home / 12,730.38-19,082.54-5,339.12

Finding the Fourth Proportional to 12,730.38, 19,082.54 and 5,339.12

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Solution

The fourth proportional to 12,730.38, 19,082.54 and 5,339.12 is: 8,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.38 : 19,082.54 = 5,339.12 : x
  2. Step 2: Convert to fraction form
    12,730.38/19,082.54 = 5,339.12/x
  3. Step 3: Cross multiply
    12,730.38x = 19,082.54 × 5,339.12
  4. Step 4: Simplify right side
    12,730.38x = 101,883,970.96
  5. Step 5: Solve for x
    x = 101,883,970.96/12,730.38
  6. Step 6: Final answer
    x = 8,003.22

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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.