Home / 17,521.39-24,175.81-11,145.66

Finding the Fourth Proportional to 17,521.39, 24,175.81 and 11,145.66

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Solution

The fourth proportional to 17,521.39, 24,175.81 and 11,145.66 is: 15,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,521.39 : 24,175.81 = 11,145.66 : x
  2. Step 2: Convert to fraction form
    17,521.39/24,175.81 = 11,145.66/x
  3. Step 3: Cross multiply
    17,521.39x = 24,175.81 × 11,145.66
  4. Step 4: Simplify right side
    17,521.39x = 269,455,281.76
  5. Step 5: Solve for x
    x = 269,455,281.76/17,521.39
  6. Step 6: Final answer
    x = 15,378.65

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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.