Home / 12,966.12-19,439.10-5,564.52

Finding the Fourth Proportional to 12,966.12, 19,439.10 and 5,564.52

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Solution

The fourth proportional to 12,966.12, 19,439.10 and 5,564.52 is: 8,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.12 : 19,439.10 = 5,564.52 : x
  2. Step 2: Convert to fraction form
    12,966.12/19,439.10 = 5,564.52/x
  3. Step 3: Cross multiply
    12,966.12x = 19,439.10 × 5,564.52
  4. Step 4: Simplify right side
    12,966.12x = 108,169,260.73
  5. Step 5: Solve for x
    x = 108,169,260.73/12,966.12
  6. Step 6: Final answer
    x = 8,342.45

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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.