Home / 13,458.92-18,572.82-7,869.80

Finding the Fourth Proportional to 13,458.92, 18,572.82 and 7,869.80

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Solution

The fourth proportional to 13,458.92, 18,572.82 and 7,869.80 is: 10,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.92 : 18,572.82 = 7,869.80 : x
  2. Step 2: Convert to fraction form
    13,458.92/18,572.82 = 7,869.80/x
  3. Step 3: Cross multiply
    13,458.92x = 18,572.82 × 7,869.80
  4. Step 4: Simplify right side
    13,458.92x = 146,164,378.84
  5. Step 5: Solve for x
    x = 146,164,378.84/13,458.92
  6. Step 6: Final answer
    x = 10,860.04

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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.