Home / 10,015.29-15,023.79-2,619.74

Finding the Fourth Proportional to 10,015.29, 15,023.79 and 2,619.74

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Solution

The fourth proportional to 10,015.29, 15,023.79 and 2,619.74 is: 3,929.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.29 : 15,023.79 = 2,619.74 : x
  2. Step 2: Convert to fraction form
    10,015.29/15,023.79 = 2,619.74/x
  3. Step 3: Cross multiply
    10,015.29x = 15,023.79 × 2,619.74
  4. Step 4: Simplify right side
    10,015.29x = 39,358,461.17
  5. Step 5: Solve for x
    x = 39,358,461.17/10,015.29
  6. Step 6: Final answer
    x = 3,929.84

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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.