Home / 14,397.89-21,559.47-12,331.19

Finding the Fourth Proportional to 14,397.89, 21,559.47 and 12,331.19

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Solution

The fourth proportional to 14,397.89, 21,559.47 and 12,331.19 is: 18,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,397.89 : 21,559.47 = 12,331.19 : x
  2. Step 2: Convert to fraction form
    14,397.89/21,559.47 = 12,331.19/x
  3. Step 3: Cross multiply
    14,397.89x = 21,559.47 × 12,331.19
  4. Step 4: Simplify right side
    14,397.89x = 265,853,920.87
  5. Step 5: Solve for x
    x = 265,853,920.87/14,397.89
  6. Step 6: Final answer
    x = 18,464.78

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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.