Home / 10,279.19-15,419.36-5,018.69

Finding the Fourth Proportional to 10,279.19, 15,419.36 and 5,018.69

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Solution

The fourth proportional to 10,279.19, 15,419.36 and 5,018.69 is: 7,528.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.19 : 15,419.36 = 5,018.69 : x
  2. Step 2: Convert to fraction form
    10,279.19/15,419.36 = 5,018.69/x
  3. Step 3: Cross multiply
    10,279.19x = 15,419.36 × 5,018.69
  4. Step 4: Simplify right side
    10,279.19x = 77,384,885.65
  5. Step 5: Solve for x
    x = 77,384,885.65/10,279.19
  6. Step 6: Final answer
    x = 7,528.31

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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.