Home / 18,943.64-26,146.92-12,903.88

Finding the Fourth Proportional to 18,943.64, 26,146.92 and 12,903.88

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Solution

The fourth proportional to 18,943.64, 26,146.92 and 12,903.88 is: 17,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.64 : 26,146.92 = 12,903.88 : x
  2. Step 2: Convert to fraction form
    18,943.64/26,146.92 = 12,903.88/x
  3. Step 3: Cross multiply
    18,943.64x = 26,146.92 × 12,903.88
  4. Step 4: Simplify right side
    18,943.64x = 337,396,718.05
  5. Step 5: Solve for x
    x = 337,396,718.05/18,943.64
  6. Step 6: Final answer
    x = 17,810.55

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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.