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Finding the Fourth Proportional to 15,010.72, 22,520.94 and 7,218.52

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Solution

The fourth proportional to 15,010.72, 22,520.94 and 7,218.52 is: 10,830.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.72 : 22,520.94 = 7,218.52 : x
  2. Step 2: Convert to fraction form
    15,010.72/22,520.94 = 7,218.52/x
  3. Step 3: Cross multiply
    15,010.72x = 22,520.94 × 7,218.52
  4. Step 4: Simplify right side
    15,010.72x = 162,567,855.81
  5. Step 5: Solve for x
    x = 162,567,855.81/15,010.72
  6. Step 6: Final answer
    x = 10,830.12

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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.