Home / 9,319.76-12,861.51-5,071.09

Finding the Fourth Proportional to 9,319.76, 12,861.51 and 5,071.09

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Solution

The fourth proportional to 9,319.76, 12,861.51 and 5,071.09 is: 6,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.76 : 12,861.51 = 5,071.09 : x
  2. Step 2: Convert to fraction form
    9,319.76/12,861.51 = 5,071.09/x
  3. Step 3: Cross multiply
    9,319.76x = 12,861.51 × 5,071.09
  4. Step 4: Simplify right side
    9,319.76x = 65,221,874.75
  5. Step 5: Solve for x
    x = 65,221,874.75/9,319.76
  6. Step 6: Final answer
    x = 6,998.24

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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.