Home / 11,087.45-15,300.65-6,371.72

Finding the Fourth Proportional to 11,087.45, 15,300.65 and 6,371.72

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Solution

The fourth proportional to 11,087.45, 15,300.65 and 6,371.72 is: 8,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.45 : 15,300.65 = 6,371.72 : x
  2. Step 2: Convert to fraction form
    11,087.45/15,300.65 = 6,371.72/x
  3. Step 3: Cross multiply
    11,087.45x = 15,300.65 × 6,371.72
  4. Step 4: Simplify right side
    11,087.45x = 97,491,397.04
  5. Step 5: Solve for x
    x = 97,491,397.04/11,087.45
  6. Step 6: Final answer
    x = 8,792.95

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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.