Home / 15,338.34-23,011.69-5,478.62

Finding the Fourth Proportional to 15,338.34, 23,011.69 and 5,478.62

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Solution

The fourth proportional to 15,338.34, 23,011.69 and 5,478.62 is: 8,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.34 : 23,011.69 = 5,478.62 : x
  2. Step 2: Convert to fraction form
    15,338.34/23,011.69 = 5,478.62/x
  3. Step 3: Cross multiply
    15,338.34x = 23,011.69 × 5,478.62
  4. Step 4: Simplify right side
    15,338.34x = 126,072,305.07
  5. Step 5: Solve for x
    x = 126,072,305.07/15,338.34
  6. Step 6: Final answer
    x = 8,219.42

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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.