Home / 18,741.13-28,107.55-5,411.23

Finding the Fourth Proportional to 18,741.13, 28,107.55 and 5,411.23

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Solution

The fourth proportional to 18,741.13, 28,107.55 and 5,411.23 is: 8,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.13 : 28,107.55 = 5,411.23 : x
  2. Step 2: Convert to fraction form
    18,741.13/28,107.55 = 5,411.23/x
  3. Step 3: Cross multiply
    18,741.13x = 28,107.55 × 5,411.23
  4. Step 4: Simplify right side
    18,741.13x = 152,096,417.79
  5. Step 5: Solve for x
    x = 152,096,417.79/18,741.13
  6. Step 6: Final answer
    x = 8,115.65

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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.