Home / 7,631.70-10,531.78-4,447.18

Finding the Fourth Proportional to 7,631.70, 10,531.78 and 4,447.18

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Solution

The fourth proportional to 7,631.70, 10,531.78 and 4,447.18 is: 6,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.70 : 10,531.78 = 4,447.18 : x
  2. Step 2: Convert to fraction form
    7,631.70/10,531.78 = 4,447.18/x
  3. Step 3: Cross multiply
    7,631.70x = 10,531.78 × 4,447.18
  4. Step 4: Simplify right side
    7,631.70x = 46,836,747.71
  5. Step 5: Solve for x
    x = 46,836,747.71/7,631.70
  6. Step 6: Final answer
    x = 6,137.13

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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.