Home / 9,181.60-12,670.70-4,989.85

Finding the Fourth Proportional to 9,181.60, 12,670.70 and 4,989.85

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Solution

The fourth proportional to 9,181.60, 12,670.70 and 4,989.85 is: 6,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.60 : 12,670.70 = 4,989.85 : x
  2. Step 2: Convert to fraction form
    9,181.60/12,670.70 = 4,989.85/x
  3. Step 3: Cross multiply
    9,181.60x = 12,670.70 × 4,989.85
  4. Step 4: Simplify right side
    9,181.60x = 63,224,873.19
  5. Step 5: Solve for x
    x = 63,224,873.19/9,181.60
  6. Step 6: Final answer
    x = 6,886.04

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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.