Home / 18,639.72-25,724.52-10,256.76

Finding the Fourth Proportional to 18,639.72, 25,724.52 and 10,256.76

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Solution

The fourth proportional to 18,639.72, 25,724.52 and 10,256.76 is: 14,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.72 : 25,724.52 = 10,256.76 : x
  2. Step 2: Convert to fraction form
    18,639.72/25,724.52 = 10,256.76/x
  3. Step 3: Cross multiply
    18,639.72x = 25,724.52 × 10,256.76
  4. Step 4: Simplify right side
    18,639.72x = 263,850,227.76
  5. Step 5: Solve for x
    x = 263,850,227.76/18,639.72
  6. Step 6: Final answer
    x = 14,155.27

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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.