Home / 8,312.04-12,407.22-7,327.92

Finding the Fourth Proportional to 8,312.04, 12,407.22 and 7,327.92

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Solution

The fourth proportional to 8,312.04, 12,407.22 and 7,327.92 is: 10,938.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.04 : 12,407.22 = 7,327.92 : x
  2. Step 2: Convert to fraction form
    8,312.04/12,407.22 = 7,327.92/x
  3. Step 3: Cross multiply
    8,312.04x = 12,407.22 × 7,327.92
  4. Step 4: Simplify right side
    8,312.04x = 90,919,115.58
  5. Step 5: Solve for x
    x = 90,919,115.58/8,312.04
  6. Step 6: Final answer
    x = 10,938.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.