Home / 18,718.30-25,810.27-12,753.46

Finding the Fourth Proportional to 18,718.30, 25,810.27 and 12,753.46

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Solution

The fourth proportional to 18,718.30, 25,810.27 and 12,753.46 is: 17,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.30 : 25,810.27 = 12,753.46 : x
  2. Step 2: Convert to fraction form
    18,718.30/25,810.27 = 12,753.46/x
  3. Step 3: Cross multiply
    18,718.30x = 25,810.27 × 12,753.46
  4. Step 4: Simplify right side
    18,718.30x = 329,170,246.03
  5. Step 5: Solve for x
    x = 329,170,246.03/18,718.30
  6. Step 6: Final answer
    x = 17,585.48

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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.