Home / 18,489.08-25,514.90-10,531.30

Finding the Fourth Proportional to 18,489.08, 25,514.90 and 10,531.30

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Solution

The fourth proportional to 18,489.08, 25,514.90 and 10,531.30 is: 14,533.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.08 : 25,514.90 = 10,531.30 : x
  2. Step 2: Convert to fraction form
    18,489.08/25,514.90 = 10,531.30/x
  3. Step 3: Cross multiply
    18,489.08x = 25,514.90 × 10,531.30
  4. Step 4: Simplify right side
    18,489.08x = 268,705,066.37
  5. Step 5: Solve for x
    x = 268,705,066.37/18,489.08
  6. Step 6: Final answer
    x = 14,533.18

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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.