Home / 18,981.15-26,204.92-12,616.37

Finding the Fourth Proportional to 18,981.15, 26,204.92 and 12,616.37

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Solution

The fourth proportional to 18,981.15, 26,204.92 and 12,616.37 is: 17,417.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.15 : 26,204.92 = 12,616.37 : x
  2. Step 2: Convert to fraction form
    18,981.15/26,204.92 = 12,616.37/x
  3. Step 3: Cross multiply
    18,981.15x = 26,204.92 × 12,616.37
  4. Step 4: Simplify right side
    18,981.15x = 330,610,966.54
  5. Step 5: Solve for x
    x = 330,610,966.54/18,981.15
  6. Step 6: Final answer
    x = 17,417.86

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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.