Home / 12,562.78-17,338.44-7,527.20

Finding the Fourth Proportional to 12,562.78, 17,338.44 and 7,527.20

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Solution

The fourth proportional to 12,562.78, 17,338.44 and 7,527.20 is: 10,388.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,562.78 : 17,338.44 = 7,527.20 : x
  2. Step 2: Convert to fraction form
    12,562.78/17,338.44 = 7,527.20/x
  3. Step 3: Cross multiply
    12,562.78x = 17,338.44 × 7,527.20
  4. Step 4: Simplify right side
    12,562.78x = 130,509,905.57
  5. Step 5: Solve for x
    x = 130,509,905.57/12,562.78
  6. Step 6: Final answer
    x = 10,388.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.