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Finding the Fourth Proportional to 6,624.84, 9,915.63 and 4,869.39

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Solution

The fourth proportional to 6,624.84, 9,915.63 and 4,869.39 is: 7,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.84 : 9,915.63 = 4,869.39 : x
  2. Step 2: Convert to fraction form
    6,624.84/9,915.63 = 4,869.39/x
  3. Step 3: Cross multiply
    6,624.84x = 9,915.63 × 4,869.39
  4. Step 4: Simplify right side
    6,624.84x = 48,283,069.57
  5. Step 5: Solve for x
    x = 48,283,069.57/6,624.84
  6. Step 6: Final answer
    x = 7,288.19

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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.