Home / 12,531.56-18,767.40-6,971.10

Finding the Fourth Proportional to 12,531.56, 18,767.40 and 6,971.10

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Solution

The fourth proportional to 12,531.56, 18,767.40 and 6,971.10 is: 10,439.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.56 : 18,767.40 = 6,971.10 : x
  2. Step 2: Convert to fraction form
    12,531.56/18,767.40 = 6,971.10/x
  3. Step 3: Cross multiply
    12,531.56x = 18,767.40 × 6,971.10
  4. Step 4: Simplify right side
    12,531.56x = 130,829,422.14
  5. Step 5: Solve for x
    x = 130,829,422.14/12,531.56
  6. Step 6: Final answer
    x = 10,439.99

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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.