Home / 18,815.64-25,966.62-11,264.28

Finding the Fourth Proportional to 18,815.64, 25,966.62 and 11,264.28

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Solution

The fourth proportional to 18,815.64, 25,966.62 and 11,264.28 is: 15,545.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.64 : 25,966.62 = 11,264.28 : x
  2. Step 2: Convert to fraction form
    18,815.64/25,966.62 = 11,264.28/x
  3. Step 3: Cross multiply
    18,815.64x = 25,966.62 × 11,264.28
  4. Step 4: Simplify right side
    18,815.64x = 292,495,278.33
  5. Step 5: Solve for x
    x = 292,495,278.33/18,815.64
  6. Step 6: Final answer
    x = 15,545.33

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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.