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Finding the Fourth Proportional to 7,484.65, 11,219.63 and 6,376.57

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Solution

The fourth proportional to 7,484.65, 11,219.63 and 6,376.57 is: 9,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.65 : 11,219.63 = 6,376.57 : x
  2. Step 2: Convert to fraction form
    7,484.65/11,219.63 = 6,376.57/x
  3. Step 3: Cross multiply
    7,484.65x = 11,219.63 × 6,376.57
  4. Step 4: Simplify right side
    7,484.65x = 71,542,715.91
  5. Step 5: Solve for x
    x = 71,542,715.91/7,484.65
  6. Step 6: Final answer
    x = 9,558.60

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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.