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Finding the Fourth Proportional to 9,999.16, 15,000.82 and 5,004.12

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Solution

The fourth proportional to 9,999.16, 15,000.82 and 5,004.12 is: 7,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.16 : 15,000.82 = 5,004.12 : x
  2. Step 2: Convert to fraction form
    9,999.16/15,000.82 = 5,004.12/x
  3. Step 3: Cross multiply
    9,999.16x = 15,000.82 × 5,004.12
  4. Step 4: Simplify right side
    9,999.16x = 75,065,903.38
  5. Step 5: Solve for x
    x = 75,065,903.38/9,999.16
  6. Step 6: Final answer
    x = 7,507.22

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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.