Home / 13,521.77-18,658.19-7,552.68

Finding the Fourth Proportional to 13,521.77, 18,658.19 and 7,552.68

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Solution

The fourth proportional to 13,521.77, 18,658.19 and 7,552.68 is: 10,421.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.77 : 18,658.19 = 7,552.68 : x
  2. Step 2: Convert to fraction form
    13,521.77/18,658.19 = 7,552.68/x
  3. Step 3: Cross multiply
    13,521.77x = 18,658.19 × 7,552.68
  4. Step 4: Simplify right side
    13,521.77x = 140,919,357.33
  5. Step 5: Solve for x
    x = 140,919,357.33/13,521.77
  6. Step 6: Final answer
    x = 10,421.66

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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.