Home / 10,316.76-15,473.16-2,919.43

Finding the Fourth Proportional to 10,316.76, 15,473.16 and 2,919.43

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Solution

The fourth proportional to 10,316.76, 15,473.16 and 2,919.43 is: 4,378.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.76 : 15,473.16 = 2,919.43 : x
  2. Step 2: Convert to fraction form
    10,316.76/15,473.16 = 2,919.43/x
  3. Step 3: Cross multiply
    10,316.76x = 15,473.16 × 2,919.43
  4. Step 4: Simplify right side
    10,316.76x = 45,172,807.50
  5. Step 5: Solve for x
    x = 45,172,807.50/10,316.76
  6. Step 6: Final answer
    x = 4,378.58

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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.