Home / 13,612.13-18,726.41-13,028.93

Finding the Fourth Proportional to 13,612.13, 18,726.41 and 13,028.93

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Solution

The fourth proportional to 13,612.13, 18,726.41 and 13,028.93 is: 17,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.13 : 18,726.41 = 13,028.93 : x
  2. Step 2: Convert to fraction form
    13,612.13/18,726.41 = 13,028.93/x
  3. Step 3: Cross multiply
    13,612.13x = 18,726.41 × 13,028.93
  4. Step 4: Simplify right side
    13,612.13x = 243,985,023.98
  5. Step 5: Solve for x
    x = 243,985,023.98/13,612.13
  6. Step 6: Final answer
    x = 17,924.10

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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.