Home / 18,714.68-25,826.10-10,331

Finding the Fourth Proportional to 18,714.68, 25,826.10 and 10,331

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Solution

The fourth proportional to 18,714.68, 25,826.10 and 10,331 is: 14,256.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.68 : 25,826.10 = 10,331 : x
  2. Step 2: Convert to fraction form
    18,714.68/25,826.10 = 10,331/x
  3. Step 3: Cross multiply
    18,714.68x = 25,826.10 × 10,331
  4. Step 4: Simplify right side
    18,714.68x = 266,809,439.10
  5. Step 5: Solve for x
    x = 266,809,439.10/18,714.68
  6. Step 6: Final answer
    x = 14,256.69

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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.