Home / 7,778.76-11,670.60-5,931.96

Finding the Fourth Proportional to 7,778.76, 11,670.60 and 5,931.96

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Solution

The fourth proportional to 7,778.76, 11,670.60 and 5,931.96 is: 8,899.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.76 : 11,670.60 = 5,931.96 : x
  2. Step 2: Convert to fraction form
    7,778.76/11,670.60 = 5,931.96/x
  3. Step 3: Cross multiply
    7,778.76x = 11,670.60 × 5,931.96
  4. Step 4: Simplify right side
    7,778.76x = 69,229,532.38
  5. Step 5: Solve for x
    x = 69,229,532.38/7,778.76
  6. Step 6: Final answer
    x = 8,899.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.