Home / 12,230.08-18,337.20-8,322.40

Finding the Fourth Proportional to 12,230.08, 18,337.20 and 8,322.40

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Solution

The fourth proportional to 12,230.08, 18,337.20 and 8,322.40 is: 12,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.08 : 18,337.20 = 8,322.40 : x
  2. Step 2: Convert to fraction form
    12,230.08/18,337.20 = 8,322.40/x
  3. Step 3: Cross multiply
    12,230.08x = 18,337.20 × 8,322.40
  4. Step 4: Simplify right side
    12,230.08x = 152,609,513.28
  5. Step 5: Solve for x
    x = 152,609,513.28/12,230.08
  6. Step 6: Final answer
    x = 12,478.21

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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.