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Finding the Fourth Proportional to 9,000.65, 13,505.07 and 4,621.18

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Solution

The fourth proportional to 9,000.65, 13,505.07 and 4,621.18 is: 6,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.65 : 13,505.07 = 4,621.18 : x
  2. Step 2: Convert to fraction form
    9,000.65/13,505.07 = 4,621.18/x
  3. Step 3: Cross multiply
    9,000.65x = 13,505.07 × 4,621.18
  4. Step 4: Simplify right side
    9,000.65x = 62,409,359.38
  5. Step 5: Solve for x
    x = 62,409,359.38/9,000.65
  6. Step 6: Final answer
    x = 6,933.87

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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.