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Finding the Fourth Proportional to 9,366.56, 12,985.04 and 8,867.18

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Solution

The fourth proportional to 9,366.56, 12,985.04 and 8,867.18 is: 12,292.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,366.56 : 12,985.04 = 8,867.18 : x
  2. Step 2: Convert to fraction form
    9,366.56/12,985.04 = 8,867.18/x
  3. Step 3: Cross multiply
    9,366.56x = 12,985.04 × 8,867.18
  4. Step 4: Simplify right side
    9,366.56x = 115,140,686.99
  5. Step 5: Solve for x
    x = 115,140,686.99/9,366.56
  6. Step 6: Final answer
    x = 12,292.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.