Home / 9,181.93-12,671.07-4,990.18

Finding the Fourth Proportional to 9,181.93, 12,671.07 and 4,990.18

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Solution

The fourth proportional to 9,181.93, 12,671.07 and 4,990.18 is: 6,886.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.93 : 12,671.07 = 4,990.18 : x
  2. Step 2: Convert to fraction form
    9,181.93/12,671.07 = 4,990.18/x
  3. Step 3: Cross multiply
    9,181.93x = 12,671.07 × 4,990.18
  4. Step 4: Simplify right side
    9,181.93x = 63,230,920.09
  5. Step 5: Solve for x
    x = 63,230,920.09/9,181.93
  6. Step 6: Final answer
    x = 6,886.45

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Half scale
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Double scale
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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.