Home / 9,148.79-13,721.37-4,217.72

Finding the Fourth Proportional to 9,148.79, 13,721.37 and 4,217.72

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Solution

The fourth proportional to 9,148.79, 13,721.37 and 4,217.72 is: 6,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.79 : 13,721.37 = 4,217.72 : x
  2. Step 2: Convert to fraction form
    9,148.79/13,721.37 = 4,217.72/x
  3. Step 3: Cross multiply
    9,148.79x = 13,721.37 × 4,217.72
  4. Step 4: Simplify right side
    9,148.79x = 57,872,806.98
  5. Step 5: Solve for x
    x = 57,872,806.98/9,148.79
  6. Step 6: Final answer
    x = 6,325.73

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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.