Home / 10,447.98-15,660.95-3,426.16

Finding the Fourth Proportional to 10,447.98, 15,660.95 and 3,426.16

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Solution

The fourth proportional to 10,447.98, 15,660.95 and 3,426.16 is: 5,135.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.98 : 15,660.95 = 3,426.16 : x
  2. Step 2: Convert to fraction form
    10,447.98/15,660.95 = 3,426.16/x
  3. Step 3: Cross multiply
    10,447.98x = 15,660.95 × 3,426.16
  4. Step 4: Simplify right side
    10,447.98x = 53,656,920.45
  5. Step 5: Solve for x
    x = 53,656,920.45/10,447.98
  6. Step 6: Final answer
    x = 5,135.63

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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.