Home / 15,438.80-23,158.14-5,578.07

Finding the Fourth Proportional to 15,438.80, 23,158.14 and 5,578.07

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Solution

The fourth proportional to 15,438.80, 23,158.14 and 5,578.07 is: 8,367.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.80 : 23,158.14 = 5,578.07 : x
  2. Step 2: Convert to fraction form
    15,438.80/23,158.14 = 5,578.07/x
  3. Step 3: Cross multiply
    15,438.80x = 23,158.14 × 5,578.07
  4. Step 4: Simplify right side
    15,438.80x = 129,177,610.20
  5. Step 5: Solve for x
    x = 129,177,610.20/15,438.80
  6. Step 6: Final answer
    x = 8,367.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.