Home / 18,139.23-27,205.20-5,657.58

Finding the Fourth Proportional to 18,139.23, 27,205.20 and 5,657.58

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Solution

The fourth proportional to 18,139.23, 27,205.20 and 5,657.58 is: 8,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.23 : 27,205.20 = 5,657.58 : x
  2. Step 2: Convert to fraction form
    18,139.23/27,205.20 = 5,657.58/x
  3. Step 3: Cross multiply
    18,139.23x = 27,205.20 × 5,657.58
  4. Step 4: Simplify right side
    18,139.23x = 153,915,595.42
  5. Step 5: Solve for x
    x = 153,915,595.42/18,139.23
  6. Step 6: Final answer
    x = 8,485.23

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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.