Home / 15,763.68-21,785.22-12,926.64

Finding the Fourth Proportional to 15,763.68, 21,785.22 and 12,926.64

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Solution

The fourth proportional to 15,763.68, 21,785.22 and 12,926.64 is: 17,864.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.68 : 21,785.22 = 12,926.64 : x
  2. Step 2: Convert to fraction form
    15,763.68/21,785.22 = 12,926.64/x
  3. Step 3: Cross multiply
    15,763.68x = 21,785.22 × 12,926.64
  4. Step 4: Simplify right side
    15,763.68x = 281,609,696.26
  5. Step 5: Solve for x
    x = 281,609,696.26/15,763.68
  6. Step 6: Final answer
    x = 17,864.46

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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.