Home / 18,637.10-25,712.30-11,083.74

Finding the Fourth Proportional to 18,637.10, 25,712.30 and 11,083.74

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Solution

The fourth proportional to 18,637.10, 25,712.30 and 11,083.74 is: 15,291.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.10 : 25,712.30 = 11,083.74 : x
  2. Step 2: Convert to fraction form
    18,637.10/25,712.30 = 11,083.74/x
  3. Step 3: Cross multiply
    18,637.10x = 25,712.30 × 11,083.74
  4. Step 4: Simplify right side
    18,637.10x = 284,988,392.58
  5. Step 5: Solve for x
    x = 284,988,392.58/18,637.10
  6. Step 6: Final answer
    x = 15,291.46

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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.