Home / 19,508.31-26,896.05-12,432.15

Finding the Fourth Proportional to 19,508.31, 26,896.05 and 12,432.15

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Solution

The fourth proportional to 19,508.31, 26,896.05 and 12,432.15 is: 17,140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,508.31 : 26,896.05 = 12,432.15 : x
  2. Step 2: Convert to fraction form
    19,508.31/26,896.05 = 12,432.15/x
  3. Step 3: Cross multiply
    19,508.31x = 26,896.05 × 12,432.15
  4. Step 4: Simplify right side
    19,508.31x = 334,375,728.01
  5. Step 5: Solve for x
    x = 334,375,728.01/19,508.31
  6. Step 6: Final answer
    x = 17,140.17

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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.