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Finding the Fourth Proportional to 9,558.80, 14,305.80 and 8,392.40

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Solution

The fourth proportional to 9,558.80, 14,305.80 and 8,392.40 is: 12,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,558.80 : 14,305.80 = 8,392.40 : x
  2. Step 2: Convert to fraction form
    9,558.80/14,305.80 = 8,392.40/x
  3. Step 3: Cross multiply
    9,558.80x = 14,305.80 × 8,392.40
  4. Step 4: Simplify right side
    9,558.80x = 120,059,995.92
  5. Step 5: Solve for x
    x = 120,059,995.92/9,558.80
  6. Step 6: Final answer
    x = 12,560.15

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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.