Home / 10,278.96-15,402.28-7,944.67

Finding the Fourth Proportional to 10,278.96, 15,402.28 and 7,944.67

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Solution

The fourth proportional to 10,278.96, 15,402.28 and 7,944.67 is: 11,904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.96 : 15,402.28 = 7,944.67 : x
  2. Step 2: Convert to fraction form
    10,278.96/15,402.28 = 7,944.67/x
  3. Step 3: Cross multiply
    10,278.96x = 15,402.28 × 7,944.67
  4. Step 4: Simplify right side
    10,278.96x = 122,366,109.47
  5. Step 5: Solve for x
    x = 122,366,109.47/10,278.96
  6. Step 6: Final answer
    x = 11,904.53

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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.