Home / 15,871.60-23,802.20-5,338.79

Finding the Fourth Proportional to 15,871.60, 23,802.20 and 5,338.79

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Solution

The fourth proportional to 15,871.60, 23,802.20 and 5,338.79 is: 8,006.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.60 : 23,802.20 = 5,338.79 : x
  2. Step 2: Convert to fraction form
    15,871.60/23,802.20 = 5,338.79/x
  3. Step 3: Cross multiply
    15,871.60x = 23,802.20 × 5,338.79
  4. Step 4: Simplify right side
    15,871.60x = 127,074,947.34
  5. Step 5: Solve for x
    x = 127,074,947.34/15,871.60
  6. Step 6: Final answer
    x = 8,006.44

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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.