Home / 10,411.32-15,616.92-2,620.13

Finding the Fourth Proportional to 10,411.32, 15,616.92 and 2,620.13

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Solution

The fourth proportional to 10,411.32, 15,616.92 and 2,620.13 is: 3,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411.32 : 15,616.92 = 2,620.13 : x
  2. Step 2: Convert to fraction form
    10,411.32/15,616.92 = 2,620.13/x
  3. Step 3: Cross multiply
    10,411.32x = 15,616.92 × 2,620.13
  4. Step 4: Simplify right side
    10,411.32x = 40,918,360.60
  5. Step 5: Solve for x
    x = 40,918,360.60/10,411.32
  6. Step 6: Final answer
    x = 3,930.18

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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.