Home / 12,543.59-18,817.32-4,222.96

Finding the Fourth Proportional to 12,543.59, 18,817.32 and 4,222.96

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Solution

The fourth proportional to 12,543.59, 18,817.32 and 4,222.96 is: 6,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.59 : 18,817.32 = 4,222.96 : x
  2. Step 2: Convert to fraction form
    12,543.59/18,817.32 = 4,222.96/x
  3. Step 3: Cross multiply
    12,543.59x = 18,817.32 × 4,222.96
  4. Step 4: Simplify right side
    12,543.59x = 79,464,720.12
  5. Step 5: Solve for x
    x = 79,464,720.12/12,543.59
  6. Step 6: Final answer
    x = 6,335.08

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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.