Home / 19,173.67-28,760.51-8,785.42

Finding the Fourth Proportional to 19,173.67, 28,760.51 and 8,785.42

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Solution

The fourth proportional to 19,173.67, 28,760.51 and 8,785.42 is: 13,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.67 : 28,760.51 = 8,785.42 : x
  2. Step 2: Convert to fraction form
    19,173.67/28,760.51 = 8,785.42/x
  3. Step 3: Cross multiply
    19,173.67x = 28,760.51 × 8,785.42
  4. Step 4: Simplify right side
    19,173.67x = 252,673,159.76
  5. Step 5: Solve for x
    x = 252,673,159.76/19,173.67
  6. Step 6: Final answer
    x = 13,178.13

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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.