Home / 10,423.04-15,632.80-3,403.20

Finding the Fourth Proportional to 10,423.04, 15,632.80 and 3,403.20

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Solution

The fourth proportional to 10,423.04, 15,632.80 and 3,403.20 is: 5,104.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.04 : 15,632.80 = 3,403.20 : x
  2. Step 2: Convert to fraction form
    10,423.04/15,632.80 = 3,403.20/x
  3. Step 3: Cross multiply
    10,423.04x = 15,632.80 × 3,403.20
  4. Step 4: Simplify right side
    10,423.04x = 53,201,544.96
  5. Step 5: Solve for x
    x = 53,201,544.96/10,423.04
  6. Step 6: Final answer
    x = 5,104.23

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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.