Home / 10,397.76-15,588.24-7,102.56

Finding the Fourth Proportional to 10,397.76, 15,588.24 and 7,102.56

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Solution

The fourth proportional to 10,397.76, 15,588.24 and 7,102.56 is: 10,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,397.76 : 15,588.24 = 7,102.56 : x
  2. Step 2: Convert to fraction form
    10,397.76/15,588.24 = 7,102.56/x
  3. Step 3: Cross multiply
    10,397.76x = 15,588.24 × 7,102.56
  4. Step 4: Simplify right side
    10,397.76x = 110,716,409.89
  5. Step 5: Solve for x
    x = 110,716,409.89/10,397.76
  6. Step 6: Final answer
    x = 10,648.10

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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.