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Finding the Fourth Proportional to 9,355.80, 13,965.20 and 8,248.66

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Solution

The fourth proportional to 9,355.80, 13,965.20 and 8,248.66 is: 12,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355.80 : 13,965.20 = 8,248.66 : x
  2. Step 2: Convert to fraction form
    9,355.80/13,965.20 = 8,248.66/x
  3. Step 3: Cross multiply
    9,355.80x = 13,965.20 × 8,248.66
  4. Step 4: Simplify right side
    9,355.80x = 115,194,186.63
  5. Step 5: Solve for x
    x = 115,194,186.63/9,355.80
  6. Step 6: Final answer
    x = 12,312.60

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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.