Home / 13,126.52-19,689.78-4,362.14

Finding the Fourth Proportional to 13,126.52, 19,689.78 and 4,362.14

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Solution

The fourth proportional to 13,126.52, 19,689.78 and 4,362.14 is: 6,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.52 : 19,689.78 = 4,362.14 : x
  2. Step 2: Convert to fraction form
    13,126.52/19,689.78 = 4,362.14/x
  3. Step 3: Cross multiply
    13,126.52x = 19,689.78 × 4,362.14
  4. Step 4: Simplify right side
    13,126.52x = 85,889,576.93
  5. Step 5: Solve for x
    x = 85,889,576.93/13,126.52
  6. Step 6: Final answer
    x = 6,543.21

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Similar ratio
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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.