Home / 10,621.17-15,942.79-10,382.90

Finding the Fourth Proportional to 10,621.17, 15,942.79 and 10,382.90

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Solution

The fourth proportional to 10,621.17, 15,942.79 and 10,382.90 is: 15,585.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.17 : 15,942.79 = 10,382.90 : x
  2. Step 2: Convert to fraction form
    10,621.17/15,942.79 = 10,382.90/x
  3. Step 3: Cross multiply
    10,621.17x = 15,942.79 × 10,382.90
  4. Step 4: Simplify right side
    10,621.17x = 165,532,408.19
  5. Step 5: Solve for x
    x = 165,532,408.19/10,621.17
  6. Step 6: Final answer
    x = 15,585.14

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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.