Home / 18,315.46-25,275.18-10,357.66

Finding the Fourth Proportional to 18,315.46, 25,275.18 and 10,357.66

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Solution

The fourth proportional to 18,315.46, 25,275.18 and 10,357.66 is: 14,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.46 : 25,275.18 = 10,357.66 : x
  2. Step 2: Convert to fraction form
    18,315.46/25,275.18 = 10,357.66/x
  3. Step 3: Cross multiply
    18,315.46x = 25,275.18 × 10,357.66
  4. Step 4: Simplify right side
    18,315.46x = 261,791,720.88
  5. Step 5: Solve for x
    x = 261,791,720.88/18,315.46
  6. Step 6: Final answer
    x = 14,293.48

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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.