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Finding the Fourth Proportional to 9,891.30, 14,826.60 and 9,079.68

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Solution

The fourth proportional to 9,891.30, 14,826.60 and 9,079.68 is: 13,610.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891.30 : 14,826.60 = 9,079.68 : x
  2. Step 2: Convert to fraction form
    9,891.30/14,826.60 = 9,079.68/x
  3. Step 3: Cross multiply
    9,891.30x = 14,826.60 × 9,079.68
  4. Step 4: Simplify right side
    9,891.30x = 134,620,783.49
  5. Step 5: Solve for x
    x = 134,620,783.49/9,891.30
  6. Step 6: Final answer
    x = 13,610.02

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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.