Home / 13,943.49-19,246.28-8,279.16

Finding the Fourth Proportional to 13,943.49, 19,246.28 and 8,279.16

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Solution

The fourth proportional to 13,943.49, 19,246.28 and 8,279.16 is: 11,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.49 : 19,246.28 = 8,279.16 : x
  2. Step 2: Convert to fraction form
    13,943.49/19,246.28 = 8,279.16/x
  3. Step 3: Cross multiply
    13,943.49x = 19,246.28 × 8,279.16
  4. Step 4: Simplify right side
    13,943.49x = 159,343,096.07
  5. Step 5: Solve for x
    x = 159,343,096.07/13,943.49
  6. Step 6: Final answer
    x = 11,427.78

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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.