Home / 10,631.21-14,671.76-5,915.49

Finding the Fourth Proportional to 10,631.21, 14,671.76 and 5,915.49

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Solution

The fourth proportional to 10,631.21, 14,671.76 and 5,915.49 is: 8,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631.21 : 14,671.76 = 5,915.49 : x
  2. Step 2: Convert to fraction form
    10,631.21/14,671.76 = 5,915.49/x
  3. Step 3: Cross multiply
    10,631.21x = 14,671.76 × 5,915.49
  4. Step 4: Simplify right side
    10,631.21x = 86,790,619.98
  5. Step 5: Solve for x
    x = 86,790,619.98/10,631.21
  6. Step 6: Final answer
    x = 8,163.76

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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.