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Finding the Fourth Proportional to 9,891.10, 14,848.80 and 5,452.30

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Solution

The fourth proportional to 9,891.10, 14,848.80 and 5,452.30 is: 8,185.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891.10 : 14,848.80 = 5,452.30 : x
  2. Step 2: Convert to fraction form
    9,891.10/14,848.80 = 5,452.30/x
  3. Step 3: Cross multiply
    9,891.10x = 14,848.80 × 5,452.30
  4. Step 4: Simplify right side
    9,891.10x = 80,960,112.24
  5. Step 5: Solve for x
    x = 80,960,112.24/9,891.10
  6. Step 6: Final answer
    x = 8,185.15

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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.