Home / 7,868.76-11,849.70-5,692.74

Finding the Fourth Proportional to 7,868.76, 11,849.70 and 5,692.74

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Solution

The fourth proportional to 7,868.76, 11,849.70 and 5,692.74 is: 8,572.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.76 : 11,849.70 = 5,692.74 : x
  2. Step 2: Convert to fraction form
    7,868.76/11,849.70 = 5,692.74/x
  3. Step 3: Cross multiply
    7,868.76x = 11,849.70 × 5,692.74
  4. Step 4: Simplify right side
    7,868.76x = 67,457,261.18
  5. Step 5: Solve for x
    x = 67,457,261.18/7,868.76
  6. Step 6: Final answer
    x = 8,572.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.