Home / 15,469.90-21,357.21-10,696.84

Finding the Fourth Proportional to 15,469.90, 21,357.21 and 10,696.84

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Solution

The fourth proportional to 15,469.90, 21,357.21 and 10,696.84 is: 14,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469.90 : 21,357.21 = 10,696.84 : x
  2. Step 2: Convert to fraction form
    15,469.90/21,357.21 = 10,696.84/x
  3. Step 3: Cross multiply
    15,469.90x = 21,357.21 × 10,696.84
  4. Step 4: Simplify right side
    15,469.90x = 228,454,658.22
  5. Step 5: Solve for x
    x = 228,454,658.22/15,469.90
  6. Step 6: Final answer
    x = 14,767.69

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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.