Home / 8,805.44-12,140.32-6,290.56

Finding the Fourth Proportional to 8,805.44, 12,140.32 and 6,290.56

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Solution

The fourth proportional to 8,805.44, 12,140.32 and 6,290.56 is: 8,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.44 : 12,140.32 = 6,290.56 : x
  2. Step 2: Convert to fraction form
    8,805.44/12,140.32 = 6,290.56/x
  3. Step 3: Cross multiply
    8,805.44x = 12,140.32 × 6,290.56
  4. Step 4: Simplify right side
    8,805.44x = 76,369,411.38
  5. Step 5: Solve for x
    x = 76,369,411.38/8,805.44
  6. Step 6: Final answer
    x = 8,672.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.