Home / 12,109.41-18,058.16-11,998.70

Finding the Fourth Proportional to 12,109.41, 18,058.16 and 11,998.70

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Solution

The fourth proportional to 12,109.41, 18,058.16 and 11,998.70 is: 17,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109.41 : 18,058.16 = 11,998.70 : x
  2. Step 2: Convert to fraction form
    12,109.41/18,058.16 = 11,998.70/x
  3. Step 3: Cross multiply
    12,109.41x = 18,058.16 × 11,998.70
  4. Step 4: Simplify right side
    12,109.41x = 216,674,294.11
  5. Step 5: Solve for x
    x = 216,674,294.11/12,109.41
  6. Step 6: Final answer
    x = 17,893.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.