Home / 12,900.71-19,325.14-6,731.75

Finding the Fourth Proportional to 12,900.71, 19,325.14 and 6,731.75

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Solution

The fourth proportional to 12,900.71, 19,325.14 and 6,731.75 is: 10,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.71 : 19,325.14 = 6,731.75 : x
  2. Step 2: Convert to fraction form
    12,900.71/19,325.14 = 6,731.75/x
  3. Step 3: Cross multiply
    12,900.71x = 19,325.14 × 6,731.75
  4. Step 4: Simplify right side
    12,900.71x = 130,092,011.20
  5. Step 5: Solve for x
    x = 130,092,011.20/12,900.71
  6. Step 6: Final answer
    x = 10,084.10

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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.