Home / 19,164.20-28,742.65-5,124.87

Finding the Fourth Proportional to 19,164.20, 28,742.65 and 5,124.87

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Solution

The fourth proportional to 19,164.20, 28,742.65 and 5,124.87 is: 7,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.20 : 28,742.65 = 5,124.87 : x
  2. Step 2: Convert to fraction form
    19,164.20/28,742.65 = 5,124.87/x
  3. Step 3: Cross multiply
    19,164.20x = 28,742.65 × 5,124.87
  4. Step 4: Simplify right side
    19,164.20x = 147,302,331.89
  5. Step 5: Solve for x
    x = 147,302,331.89/19,164.20
  6. Step 6: Final answer
    x = 7,686.33

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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.