Home / 13,310.19-19,963.17-7,976.34

Finding the Fourth Proportional to 13,310.19, 19,963.17 and 7,976.34

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Solution

The fourth proportional to 13,310.19, 19,963.17 and 7,976.34 is: 11,963.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.19 : 19,963.17 = 7,976.34 : x
  2. Step 2: Convert to fraction form
    13,310.19/19,963.17 = 7,976.34/x
  3. Step 3: Cross multiply
    13,310.19x = 19,963.17 × 7,976.34
  4. Step 4: Simplify right side
    13,310.19x = 159,233,031.40
  5. Step 5: Solve for x
    x = 159,233,031.40/13,310.19
  6. Step 6: Final answer
    x = 11,963.24

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1.5x scale

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.