Home / 11,568.15-15,990.95-10,321.56

Finding the Fourth Proportional to 11,568.15, 15,990.95 and 10,321.56

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Solution

The fourth proportional to 11,568.15, 15,990.95 and 10,321.56 is: 14,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.15 : 15,990.95 = 10,321.56 : x
  2. Step 2: Convert to fraction form
    11,568.15/15,990.95 = 10,321.56/x
  3. Step 3: Cross multiply
    11,568.15x = 15,990.95 × 10,321.56
  4. Step 4: Simplify right side
    11,568.15x = 165,051,549.88
  5. Step 5: Solve for x
    x = 165,051,549.88/11,568.15
  6. Step 6: Final answer
    x = 14,267.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.