Home / 9,313.60-12,873.18-8,186.08

Finding the Fourth Proportional to 9,313.60, 12,873.18 and 8,186.08

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Solution

The fourth proportional to 9,313.60, 12,873.18 and 8,186.08 is: 11,314.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,313.60 : 12,873.18 = 8,186.08 : x
  2. Step 2: Convert to fraction form
    9,313.60/12,873.18 = 8,186.08/x
  3. Step 3: Cross multiply
    9,313.60x = 12,873.18 × 8,186.08
  4. Step 4: Simplify right side
    9,313.60x = 105,380,881.33
  5. Step 5: Solve for x
    x = 105,380,881.33/9,313.60
  6. Step 6: Final answer
    x = 11,314.73

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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.