Home / 18,656.28-25,746.12-10,272.78

Finding the Fourth Proportional to 18,656.28, 25,746.12 and 10,272.78

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Solution

The fourth proportional to 18,656.28, 25,746.12 and 10,272.78 is: 14,176.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656.28 : 25,746.12 = 10,272.78 : x
  2. Step 2: Convert to fraction form
    18,656.28/25,746.12 = 10,272.78/x
  3. Step 3: Cross multiply
    18,656.28x = 25,746.12 × 10,272.78
  4. Step 4: Simplify right side
    18,656.28x = 264,484,226.61
  5. Step 5: Solve for x
    x = 264,484,226.61/18,656.28
  6. Step 6: Final answer
    x = 14,176.69

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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.