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Finding the Fourth Proportional to 9,995.91, 14,995.70 and 5,000.90

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Solution

The fourth proportional to 9,995.91, 14,995.70 and 5,000.90 is: 7,502.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.91 : 14,995.70 = 5,000.90 : x
  2. Step 2: Convert to fraction form
    9,995.91/14,995.70 = 5,000.90/x
  3. Step 3: Cross multiply
    9,995.91x = 14,995.70 × 5,000.90
  4. Step 4: Simplify right side
    9,995.91x = 74,991,896.15
  5. Step 5: Solve for x
    x = 74,991,896.15/9,995.91
  6. Step 6: Final answer
    x = 7,502.26

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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.