Home / 13,308.16-19,966.18-3,948.46

Finding the Fourth Proportional to 13,308.16, 19,966.18 and 3,948.46

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Solution

The fourth proportional to 13,308.16, 19,966.18 and 3,948.46 is: 5,923.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.16 : 19,966.18 = 3,948.46 : x
  2. Step 2: Convert to fraction form
    13,308.16/19,966.18 = 3,948.46/x
  3. Step 3: Cross multiply
    13,308.16x = 19,966.18 × 3,948.46
  4. Step 4: Simplify right side
    13,308.16x = 78,835,663.08
  5. Step 5: Solve for x
    x = 78,835,663.08/13,308.16
  6. Step 6: Final answer
    x = 5,923.86

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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.