Home / 18,315.38-25,275.77-10,357.44

Finding the Fourth Proportional to 18,315.38, 25,275.77 and 10,357.44

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Solution

The fourth proportional to 18,315.38, 25,275.77 and 10,357.44 is: 14,293.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.38 : 25,275.77 = 10,357.44 : x
  2. Step 2: Convert to fraction form
    18,315.38/25,275.77 = 10,357.44/x
  3. Step 3: Cross multiply
    18,315.38x = 25,275.77 × 10,357.44
  4. Step 4: Simplify right side
    18,315.38x = 261,792,219.44
  5. Step 5: Solve for x
    x = 261,792,219.44/18,315.38
  6. Step 6: Final answer
    x = 14,293.58

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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.