Home / 10,438.45-15,657.75-3,512.95

Finding the Fourth Proportional to 10,438.45, 15,657.75 and 3,512.95

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Solution

The fourth proportional to 10,438.45, 15,657.75 and 3,512.95 is: 5,269.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.45 : 15,657.75 = 3,512.95 : x
  2. Step 2: Convert to fraction form
    10,438.45/15,657.75 = 3,512.95/x
  3. Step 3: Cross multiply
    10,438.45x = 15,657.75 × 3,512.95
  4. Step 4: Simplify right side
    10,438.45x = 55,004,892.86
  5. Step 5: Solve for x
    x = 55,004,892.86/10,438.45
  6. Step 6: Final answer
    x = 5,269.45

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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.