Home / 13,948.29-19,240.17-8,279.30

Finding the Fourth Proportional to 13,948.29, 19,240.17 and 8,279.30

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Solution

The fourth proportional to 13,948.29, 19,240.17 and 8,279.30 is: 11,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.29 : 19,240.17 = 8,279.30 : x
  2. Step 2: Convert to fraction form
    13,948.29/19,240.17 = 8,279.30/x
  3. Step 3: Cross multiply
    13,948.29x = 19,240.17 × 8,279.30
  4. Step 4: Simplify right side
    13,948.29x = 159,295,043.28
  5. Step 5: Solve for x
    x = 159,295,043.28/13,948.29
  6. Step 6: Final answer
    x = 11,420.40

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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.