Home / 10,433.07-15,641.39-5,164.40

Finding the Fourth Proportional to 10,433.07, 15,641.39 and 5,164.40

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Solution

The fourth proportional to 10,433.07, 15,641.39 and 5,164.40 is: 7,742.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,433.07 : 15,641.39 = 5,164.40 : x
  2. Step 2: Convert to fraction form
    10,433.07/15,641.39 = 5,164.40/x
  3. Step 3: Cross multiply
    10,433.07x = 15,641.39 × 5,164.40
  4. Step 4: Simplify right side
    10,433.07x = 80,778,290.49
  5. Step 5: Solve for x
    x = 80,778,290.49/10,433.07
  6. Step 6: Final answer
    x = 7,742.52

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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.