Home / 8,743.98-12,068.96-5,389.55

Finding the Fourth Proportional to 8,743.98, 12,068.96 and 5,389.55

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Solution

The fourth proportional to 8,743.98, 12,068.96 and 5,389.55 is: 7,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.98 : 12,068.96 = 5,389.55 : x
  2. Step 2: Convert to fraction form
    8,743.98/12,068.96 = 5,389.55/x
  3. Step 3: Cross multiply
    8,743.98x = 12,068.96 × 5,389.55
  4. Step 4: Simplify right side
    8,743.98x = 65,046,176.08
  5. Step 5: Solve for x
    x = 65,046,176.08/8,743.98
  6. Step 6: Final answer
    x = 7,438.97

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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.