Home / 10,420.44-15,632.03-3,397.99

Finding the Fourth Proportional to 10,420.44, 15,632.03 and 3,397.99

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Solution

The fourth proportional to 10,420.44, 15,632.03 and 3,397.99 is: 5,097.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.44 : 15,632.03 = 3,397.99 : x
  2. Step 2: Convert to fraction form
    10,420.44/15,632.03 = 3,397.99/x
  3. Step 3: Cross multiply
    10,420.44x = 15,632.03 × 3,397.99
  4. Step 4: Simplify right side
    10,420.44x = 53,117,386.47
  5. Step 5: Solve for x
    x = 53,117,386.47/10,420.44
  6. Step 6: Final answer
    x = 5,097.43

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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.