Home / 18,308.80-27,463.20-8,445.16

Finding the Fourth Proportional to 18,308.80, 27,463.20 and 8,445.16

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Solution

The fourth proportional to 18,308.80, 27,463.20 and 8,445.16 is: 12,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.80 : 27,463.20 = 8,445.16 : x
  2. Step 2: Convert to fraction form
    18,308.80/27,463.20 = 8,445.16/x
  3. Step 3: Cross multiply
    18,308.80x = 27,463.20 × 8,445.16
  4. Step 4: Simplify right side
    18,308.80x = 231,931,118.11
  5. Step 5: Solve for x
    x = 231,931,118.11/18,308.80
  6. Step 6: Final answer
    x = 12,667.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.