Home / 18,293.12-27,429.44-5,810.80

Finding the Fourth Proportional to 18,293.12, 27,429.44 and 5,810.80

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Solution

The fourth proportional to 18,293.12, 27,429.44 and 5,810.80 is: 8,712.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.12 : 27,429.44 = 5,810.80 : x
  2. Step 2: Convert to fraction form
    18,293.12/27,429.44 = 5,810.80/x
  3. Step 3: Cross multiply
    18,293.12x = 27,429.44 × 5,810.80
  4. Step 4: Simplify right side
    18,293.12x = 159,386,989.95
  5. Step 5: Solve for x
    x = 159,386,989.95/18,293.12
  6. Step 6: Final answer
    x = 8,712.95

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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.