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Finding the Fourth Proportional to 9,000.10, 13,478.55 and 4,377.70

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Solution

The fourth proportional to 9,000.10, 13,478.55 and 4,377.70 is: 6,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.10 : 13,478.55 = 4,377.70 : x
  2. Step 2: Convert to fraction form
    9,000.10/13,478.55 = 4,377.70/x
  3. Step 3: Cross multiply
    9,000.10x = 13,478.55 × 4,377.70
  4. Step 4: Simplify right side
    9,000.10x = 59,005,048.34
  5. Step 5: Solve for x
    x = 59,005,048.34/9,000.10
  6. Step 6: Final answer
    x = 6,556.04

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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.