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Finding the Fourth Proportional to 9,000.65, 13,500.87 and 3,077.48

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Solution

The fourth proportional to 9,000.65, 13,500.87 and 3,077.48 is: 4,616.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.65 : 13,500.87 = 3,077.48 : x
  2. Step 2: Convert to fraction form
    9,000.65/13,500.87 = 3,077.48/x
  3. Step 3: Cross multiply
    9,000.65x = 13,500.87 × 3,077.48
  4. Step 4: Simplify right side
    9,000.65x = 41,548,657.41
  5. Step 5: Solve for x
    x = 41,548,657.41/9,000.65
  6. Step 6: Final answer
    x = 4,616.18

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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.