Home / 13,520.91-18,658.66-7,552.67

Finding the Fourth Proportional to 13,520.91, 18,658.66 and 7,552.67

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Solution

The fourth proportional to 13,520.91, 18,658.66 and 7,552.67 is: 10,422.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.91 : 18,658.66 = 7,552.67 : x
  2. Step 2: Convert to fraction form
    13,520.91/18,658.66 = 7,552.67/x
  3. Step 3: Cross multiply
    13,520.91x = 18,658.66 × 7,552.67
  4. Step 4: Simplify right side
    13,520.91x = 140,922,701.62
  5. Step 5: Solve for x
    x = 140,922,701.62/13,520.91
  6. Step 6: Final answer
    x = 10,422.58

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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.