Home / 8,319.36-11,486.16-5,669.76

Finding the Fourth Proportional to 8,319.36, 11,486.16 and 5,669.76

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Solution

The fourth proportional to 8,319.36, 11,486.16 and 5,669.76 is: 7,827.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.36 : 11,486.16 = 5,669.76 : x
  2. Step 2: Convert to fraction form
    8,319.36/11,486.16 = 5,669.76/x
  3. Step 3: Cross multiply
    8,319.36x = 11,486.16 × 5,669.76
  4. Step 4: Simplify right side
    8,319.36x = 65,123,770.52
  5. Step 5: Solve for x
    x = 65,123,770.52/8,319.36
  6. Step 6: Final answer
    x = 7,827.98

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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.