Home / 10,279.19-15,409.53-3,700.75

Finding the Fourth Proportional to 10,279.19, 15,409.53 and 3,700.75

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Solution

The fourth proportional to 10,279.19, 15,409.53 and 3,700.75 is: 5,547.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.19 : 15,409.53 = 3,700.75 : x
  2. Step 2: Convert to fraction form
    10,279.19/15,409.53 = 3,700.75/x
  3. Step 3: Cross multiply
    10,279.19x = 15,409.53 × 3,700.75
  4. Step 4: Simplify right side
    10,279.19x = 57,026,818.15
  5. Step 5: Solve for x
    x = 57,026,818.15/10,279.19
  6. Step 6: Final answer
    x = 5,547.79

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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.