Home / 15,758.37-21,763.76-14,781.51

Finding the Fourth Proportional to 15,758.37, 21,763.76 and 14,781.51

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Solution

The fourth proportional to 15,758.37, 21,763.76 and 14,781.51 is: 20,414.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,758.37 : 21,763.76 = 14,781.51 : x
  2. Step 2: Convert to fraction form
    15,758.37/21,763.76 = 14,781.51/x
  3. Step 3: Cross multiply
    15,758.37x = 21,763.76 × 14,781.51
  4. Step 4: Simplify right side
    15,758.37x = 321,701,162.17
  5. Step 5: Solve for x
    x = 321,701,162.17/15,758.37
  6. Step 6: Final answer
    x = 20,414.62

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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.