Home / 8,969.35-12,377.66-4,990.23

Finding the Fourth Proportional to 8,969.35, 12,377.66 and 4,990.23

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Solution

The fourth proportional to 8,969.35, 12,377.66 and 4,990.23 is: 6,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.35 : 12,377.66 = 4,990.23 : x
  2. Step 2: Convert to fraction form
    8,969.35/12,377.66 = 4,990.23/x
  3. Step 3: Cross multiply
    8,969.35x = 12,377.66 × 4,990.23
  4. Step 4: Simplify right side
    8,969.35x = 61,767,370.26
  5. Step 5: Solve for x
    x = 61,767,370.26/8,969.35
  6. Step 6: Final answer
    x = 6,886.49

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Similar ratio
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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.