Home / 9,669.78-13,346.10-5,690.70

Finding the Fourth Proportional to 9,669.78, 13,346.10 and 5,690.70

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Solution

The fourth proportional to 9,669.78, 13,346.10 and 5,690.70 is: 7,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,669.78 : 13,346.10 = 5,690.70 : x
  2. Step 2: Convert to fraction form
    9,669.78/13,346.10 = 5,690.70/x
  3. Step 3: Cross multiply
    9,669.78x = 13,346.10 × 5,690.70
  4. Step 4: Simplify right side
    9,669.78x = 75,948,651.27
  5. Step 5: Solve for x
    x = 75,948,651.27/9,669.78
  6. Step 6: Final answer
    x = 7,854.23

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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.