Home / 12,547.96-18,817.92-4,225.72

Finding the Fourth Proportional to 12,547.96, 18,817.92 and 4,225.72

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Solution

The fourth proportional to 12,547.96, 18,817.92 and 4,225.72 is: 6,337.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.96 : 18,817.92 = 4,225.72 : x
  2. Step 2: Convert to fraction form
    12,547.96/18,817.92 = 4,225.72/x
  3. Step 3: Cross multiply
    12,547.96x = 18,817.92 × 4,225.72
  4. Step 4: Simplify right side
    12,547.96x = 79,519,260.90
  5. Step 5: Solve for x
    x = 79,519,260.90/12,547.96
  6. Step 6: Final answer
    x = 6,337.23

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Similar ratio
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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.