Home / 10,293.87-15,403.89-8,911.95

Finding the Fourth Proportional to 10,293.87, 15,403.89 and 8,911.95

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Solution

The fourth proportional to 10,293.87, 15,403.89 and 8,911.95 is: 13,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,293.87 : 15,403.89 = 8,911.95 : x
  2. Step 2: Convert to fraction form
    10,293.87/15,403.89 = 8,911.95/x
  3. Step 3: Cross multiply
    10,293.87x = 15,403.89 × 8,911.95
  4. Step 4: Simplify right side
    10,293.87x = 137,278,697.49
  5. Step 5: Solve for x
    x = 137,278,697.49/10,293.87
  6. Step 6: Final answer
    x = 13,335.97

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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.