Home / 13,612.38-18,726.76-13,029.18

Finding the Fourth Proportional to 13,612.38, 18,726.76 and 13,029.18

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Solution

The fourth proportional to 13,612.38, 18,726.76 and 13,029.18 is: 17,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.38 : 18,726.76 = 13,029.18 : x
  2. Step 2: Convert to fraction form
    13,612.38/18,726.76 = 13,029.18/x
  3. Step 3: Cross multiply
    13,612.38x = 18,726.76 × 13,029.18
  4. Step 4: Simplify right side
    13,612.38x = 243,994,200.65
  5. Step 5: Solve for x
    x = 243,994,200.65/13,612.38
  6. Step 6: Final answer
    x = 17,924.44

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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.