Home / 12,513.22-18,722.85-7,497.16

Finding the Fourth Proportional to 12,513.22, 18,722.85 and 7,497.16

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Solution

The fourth proportional to 12,513.22, 18,722.85 and 7,497.16 is: 11,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.22 : 18,722.85 = 7,497.16 : x
  2. Step 2: Convert to fraction form
    12,513.22/18,722.85 = 7,497.16/x
  3. Step 3: Cross multiply
    12,513.22x = 18,722.85 × 7,497.16
  4. Step 4: Simplify right side
    12,513.22x = 140,368,202.11
  5. Step 5: Solve for x
    x = 140,368,202.11/12,513.22
  6. Step 6: Final answer
    x = 11,217.59

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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.