Home / 9,093.12-12,534.20-8,330.40

Finding the Fourth Proportional to 9,093.12, 12,534.20 and 8,330.40

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Solution

The fourth proportional to 9,093.12, 12,534.20 and 8,330.40 is: 11,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,093.12 : 12,534.20 = 8,330.40 : x
  2. Step 2: Convert to fraction form
    9,093.12/12,534.20 = 8,330.40/x
  3. Step 3: Cross multiply
    9,093.12x = 12,534.20 × 8,330.40
  4. Step 4: Simplify right side
    9,093.12x = 104,414,899.68
  5. Step 5: Solve for x
    x = 104,414,899.68/9,093.12
  6. Step 6: Final answer
    x = 11,482.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.