Home / 8,669.67-11,970.01-5,690.57

Finding the Fourth Proportional to 8,669.67, 11,970.01 and 5,690.57

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Solution

The fourth proportional to 8,669.67, 11,970.01 and 5,690.57 is: 7,856.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.67 : 11,970.01 = 5,690.57 : x
  2. Step 2: Convert to fraction form
    8,669.67/11,970.01 = 5,690.57/x
  3. Step 3: Cross multiply
    8,669.67x = 11,970.01 × 5,690.57
  4. Step 4: Simplify right side
    8,669.67x = 68,116,135.65
  5. Step 5: Solve for x
    x = 68,116,135.65/8,669.67
  6. Step 6: Final answer
    x = 7,856.83

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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.