Home / 13,117.78-19,672.44-5,217.67

Finding the Fourth Proportional to 13,117.78, 19,672.44 and 5,217.67

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Solution

The fourth proportional to 13,117.78, 19,672.44 and 5,217.67 is: 7,824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.78 : 19,672.44 = 5,217.67 : x
  2. Step 2: Convert to fraction form
    13,117.78/19,672.44 = 5,217.67/x
  3. Step 3: Cross multiply
    13,117.78x = 19,672.44 × 5,217.67
  4. Step 4: Simplify right side
    13,117.78x = 102,644,300.01
  5. Step 5: Solve for x
    x = 102,644,300.01/13,117.78
  6. Step 6: Final answer
    x = 7,824.82

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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.