Home / 13,835.79-19,092.30-7,866.20

Finding the Fourth Proportional to 13,835.79, 19,092.30 and 7,866.20

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Solution

The fourth proportional to 13,835.79, 19,092.30 and 7,866.20 is: 10,854.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.79 : 19,092.30 = 7,866.20 : x
  2. Step 2: Convert to fraction form
    13,835.79/19,092.30 = 7,866.20/x
  3. Step 3: Cross multiply
    13,835.79x = 19,092.30 × 7,866.20
  4. Step 4: Simplify right side
    13,835.79x = 150,183,754.80
  5. Step 5: Solve for x
    x = 150,183,754.80/13,835.79
  6. Step 6: Final answer
    x = 10,854.73

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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.