Home / 15,742.22-21,717.23-10,636.09

Finding the Fourth Proportional to 15,742.22, 21,717.23 and 10,636.09

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Solution

The fourth proportional to 15,742.22, 21,717.23 and 10,636.09 is: 14,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742.22 : 21,717.23 = 10,636.09 : x
  2. Step 2: Convert to fraction form
    15,742.22/21,717.23 = 10,636.09/x
  3. Step 3: Cross multiply
    15,742.22x = 21,717.23 × 10,636.09
  4. Step 4: Simplify right side
    15,742.22x = 230,986,405.07
  5. Step 5: Solve for x
    x = 230,986,405.07/15,742.22
  6. Step 6: Final answer
    x = 14,673.05

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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.