Home / 10,439.06-15,661.15-3,419.45

Finding the Fourth Proportional to 10,439.06, 15,661.15 and 3,419.45

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Solution

The fourth proportional to 10,439.06, 15,661.15 and 3,419.45 is: 5,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.06 : 15,661.15 = 3,419.45 : x
  2. Step 2: Convert to fraction form
    10,439.06/15,661.15 = 3,419.45/x
  3. Step 3: Cross multiply
    10,439.06x = 15,661.15 × 3,419.45
  4. Step 4: Simplify right side
    10,439.06x = 53,552,491.24
  5. Step 5: Solve for x
    x = 53,552,491.24/10,439.06
  6. Step 6: Final answer
    x = 5,130.01

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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.