Home / 7,211.04-9,947.38-4,974.02

Finding the Fourth Proportional to 7,211.04, 9,947.38 and 4,974.02

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Solution

The fourth proportional to 7,211.04, 9,947.38 and 4,974.02 is: 6,861.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.04 : 9,947.38 = 4,974.02 : x
  2. Step 2: Convert to fraction form
    7,211.04/9,947.38 = 4,974.02/x
  3. Step 3: Cross multiply
    7,211.04x = 9,947.38 × 4,974.02
  4. Step 4: Simplify right side
    7,211.04x = 49,478,521.47
  5. Step 5: Solve for x
    x = 49,478,521.47/7,211.04
  6. Step 6: Final answer
    x = 6,861.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.