Home / 10,279.51-15,419.26-2,488.32

Finding the Fourth Proportional to 10,279.51, 15,419.26 and 2,488.32

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Solution

The fourth proportional to 10,279.51, 15,419.26 and 2,488.32 is: 3,732.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.51 : 15,419.26 = 2,488.32 : x
  2. Step 2: Convert to fraction form
    10,279.51/15,419.26 = 2,488.32/x
  3. Step 3: Cross multiply
    10,279.51x = 15,419.26 × 2,488.32
  4. Step 4: Simplify right side
    10,279.51x = 38,368,056.15
  5. Step 5: Solve for x
    x = 38,368,056.15/10,279.51
  6. Step 6: Final answer
    x = 3,732.48

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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.