Home / 18,309.39-27,432.70-12,294.19

Finding the Fourth Proportional to 18,309.39, 27,432.70 and 12,294.19

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Solution

The fourth proportional to 18,309.39, 27,432.70 and 12,294.19 is: 18,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.39 : 27,432.70 = 12,294.19 : x
  2. Step 2: Convert to fraction form
    18,309.39/27,432.70 = 12,294.19/x
  3. Step 3: Cross multiply
    18,309.39x = 27,432.70 × 12,294.19
  4. Step 4: Simplify right side
    18,309.39x = 337,262,826.01
  5. Step 5: Solve for x
    x = 337,262,826.01/18,309.39
  6. Step 6: Final answer
    x = 18,420.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.