Home / 12,214.92-18,312.12-8,506.20

Finding the Fourth Proportional to 12,214.92, 18,312.12 and 8,506.20

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Solution

The fourth proportional to 12,214.92, 18,312.12 and 8,506.20 is: 12,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.92 : 18,312.12 = 8,506.20 : x
  2. Step 2: Convert to fraction form
    12,214.92/18,312.12 = 8,506.20/x
  3. Step 3: Cross multiply
    12,214.92x = 18,312.12 × 8,506.20
  4. Step 4: Simplify right side
    12,214.92x = 155,766,555.14
  5. Step 5: Solve for x
    x = 155,766,555.14/12,214.92
  6. Step 6: Final answer
    x = 12,752.16

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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.