Home / 19,301.62-26,639.10-12,228.70

Finding the Fourth Proportional to 19,301.62, 26,639.10 and 12,228.70

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Solution

The fourth proportional to 19,301.62, 26,639.10 and 12,228.70 is: 16,877.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,301.62 : 26,639.10 = 12,228.70 : x
  2. Step 2: Convert to fraction form
    19,301.62/26,639.10 = 12,228.70/x
  3. Step 3: Cross multiply
    19,301.62x = 26,639.10 × 12,228.70
  4. Step 4: Simplify right side
    19,301.62x = 325,761,562.17
  5. Step 5: Solve for x
    x = 325,761,562.17/19,301.62
  6. Step 6: Final answer
    x = 16,877.42

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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.