Home / 18,561.76-25,624.56-12,104.32

Finding the Fourth Proportional to 18,561.76, 25,624.56 and 12,104.32

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Solution

The fourth proportional to 18,561.76, 25,624.56 and 12,104.32 is: 16,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.76 : 25,624.56 = 12,104.32 : x
  2. Step 2: Convert to fraction form
    18,561.76/25,624.56 = 12,104.32/x
  3. Step 3: Cross multiply
    18,561.76x = 25,624.56 × 12,104.32
  4. Step 4: Simplify right side
    18,561.76x = 310,167,874.10
  5. Step 5: Solve for x
    x = 310,167,874.10/18,561.76
  6. Step 6: Final answer
    x = 16,710.05

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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.