Home / 12,117.18-18,176.31-3,798.03

Finding the Fourth Proportional to 12,117.18, 18,176.31 and 3,798.03

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Solution

The fourth proportional to 12,117.18, 18,176.31 and 3,798.03 is: 5,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.18 : 18,176.31 = 3,798.03 : x
  2. Step 2: Convert to fraction form
    12,117.18/18,176.31 = 3,798.03/x
  3. Step 3: Cross multiply
    12,117.18x = 18,176.31 × 3,798.03
  4. Step 4: Simplify right side
    12,117.18x = 69,034,170.67
  5. Step 5: Solve for x
    x = 69,034,170.67/12,117.18
  6. Step 6: Final answer
    x = 5,697.21

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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.