Home / 18,664.32-25,760.12-10,709.18

Finding the Fourth Proportional to 18,664.32, 25,760.12 and 10,709.18

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Solution

The fourth proportional to 18,664.32, 25,760.12 and 10,709.18 is: 14,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.32 : 25,760.12 = 10,709.18 : x
  2. Step 2: Convert to fraction form
    18,664.32/25,760.12 = 10,709.18/x
  3. Step 3: Cross multiply
    18,664.32x = 25,760.12 × 10,709.18
  4. Step 4: Simplify right side
    18,664.32x = 275,869,761.90
  5. Step 5: Solve for x
    x = 275,869,761.90/18,664.32
  6. Step 6: Final answer
    x = 14,780.60

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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.