Home / 10,619.49-15,931.16-4,376.03

Finding the Fourth Proportional to 10,619.49, 15,931.16 and 4,376.03

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Solution

The fourth proportional to 10,619.49, 15,931.16 and 4,376.03 is: 6,564.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.49 : 15,931.16 = 4,376.03 : x
  2. Step 2: Convert to fraction form
    10,619.49/15,931.16 = 4,376.03/x
  3. Step 3: Cross multiply
    10,619.49x = 15,931.16 × 4,376.03
  4. Step 4: Simplify right side
    10,619.49x = 69,715,132.56
  5. Step 5: Solve for x
    x = 69,715,132.56/10,619.49
  6. Step 6: Final answer
    x = 6,564.83

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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.