Home / 18,315.86-27,455.27-7,218.23

Finding the Fourth Proportional to 18,315.86, 27,455.27 and 7,218.23

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Solution

The fourth proportional to 18,315.86, 27,455.27 and 7,218.23 is: 10,820.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.86 : 27,455.27 = 7,218.23 : x
  2. Step 2: Convert to fraction form
    18,315.86/27,455.27 = 7,218.23/x
  3. Step 3: Cross multiply
    18,315.86x = 27,455.27 × 7,218.23
  4. Step 4: Simplify right side
    18,315.86x = 198,178,280.20
  5. Step 5: Solve for x
    x = 198,178,280.20/18,315.86
  6. Step 6: Final answer
    x = 10,820.04

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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.