Home / 9,319.60-12,861.18-5,070.79

Finding the Fourth Proportional to 9,319.60, 12,861.18 and 5,070.79

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Solution

The fourth proportional to 9,319.60, 12,861.18 and 5,070.79 is: 6,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.60 : 12,861.18 = 5,070.79 : x
  2. Step 2: Convert to fraction form
    9,319.60/12,861.18 = 5,070.79/x
  3. Step 3: Cross multiply
    9,319.60x = 12,861.18 × 5,070.79
  4. Step 4: Simplify right side
    9,319.60x = 65,216,342.93
  5. Step 5: Solve for x
    x = 65,216,342.93/9,319.60
  6. Step 6: Final answer
    x = 6,997.76

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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.