Home / 10,461.92-15,689.55-3,440.30

Finding the Fourth Proportional to 10,461.92, 15,689.55 and 3,440.30

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Solution

The fourth proportional to 10,461.92, 15,689.55 and 3,440.30 is: 5,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,461.92 : 15,689.55 = 3,440.30 : x
  2. Step 2: Convert to fraction form
    10,461.92/15,689.55 = 3,440.30/x
  3. Step 3: Cross multiply
    10,461.92x = 15,689.55 × 3,440.30
  4. Step 4: Simplify right side
    10,461.92x = 53,976,758.87
  5. Step 5: Solve for x
    x = 53,976,758.87/10,461.92
  6. Step 6: Final answer
    x = 5,159.35

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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.