Home / 10,515.71-15,687.39-10,229.67

Finding the Fourth Proportional to 10,515.71, 15,687.39 and 10,229.67

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Solution

The fourth proportional to 10,515.71, 15,687.39 and 10,229.67 is: 15,260.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.71 : 15,687.39 = 10,229.67 : x
  2. Step 2: Convert to fraction form
    10,515.71/15,687.39 = 10,229.67/x
  3. Step 3: Cross multiply
    10,515.71x = 15,687.39 × 10,229.67
  4. Step 4: Simplify right side
    10,515.71x = 160,476,771.71
  5. Step 5: Solve for x
    x = 160,476,771.71/10,515.71
  6. Step 6: Final answer
    x = 15,260.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.