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Finding the Fourth Proportional to 15,009.70, 22,500.64 and 5,146.64

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Solution

The fourth proportional to 15,009.70, 22,500.64 and 5,146.64 is: 7,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.70 : 22,500.64 = 5,146.64 : x
  2. Step 2: Convert to fraction form
    15,009.70/22,500.64 = 5,146.64/x
  3. Step 3: Cross multiply
    15,009.70x = 22,500.64 × 5,146.64
  4. Step 4: Simplify right side
    15,009.70x = 115,802,693.85
  5. Step 5: Solve for x
    x = 115,802,693.85/15,009.70
  6. Step 6: Final answer
    x = 7,715.19

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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.