Home / 6,972.60-10,442.70-4,769.40

Finding the Fourth Proportional to 6,972.60, 10,442.70 and 4,769.40

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Solution

The fourth proportional to 6,972.60, 10,442.70 and 4,769.40 is: 7,143.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.60 : 10,442.70 = 4,769.40 : x
  2. Step 2: Convert to fraction form
    6,972.60/10,442.70 = 4,769.40/x
  3. Step 3: Cross multiply
    6,972.60x = 10,442.70 × 4,769.40
  4. Step 4: Simplify right side
    6,972.60x = 49,805,413.38
  5. Step 5: Solve for x
    x = 49,805,413.38/6,972.60
  6. Step 6: Final answer
    x = 7,143.02

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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.