Home / 7,621.80-11,432.70-4,997.40

Finding the Fourth Proportional to 7,621.80, 11,432.70 and 4,997.40

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Solution

The fourth proportional to 7,621.80, 11,432.70 and 4,997.40 is: 7,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.80 : 11,432.70 = 4,997.40 : x
  2. Step 2: Convert to fraction form
    7,621.80/11,432.70 = 4,997.40/x
  3. Step 3: Cross multiply
    7,621.80x = 11,432.70 × 4,997.40
  4. Step 4: Simplify right side
    7,621.80x = 57,133,774.98
  5. Step 5: Solve for x
    x = 57,133,774.98/7,621.80
  6. Step 6: Final answer
    x = 7,496.10

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Similar ratio
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1.5x scale

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.