Home / 15,832.49-21,851.19-9,866.07

Finding the Fourth Proportional to 15,832.49, 21,851.19 and 9,866.07

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Solution

The fourth proportional to 15,832.49, 21,851.19 and 9,866.07 is: 13,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,832.49 : 21,851.19 = 9,866.07 : x
  2. Step 2: Convert to fraction form
    15,832.49/21,851.19 = 9,866.07/x
  3. Step 3: Cross multiply
    15,832.49x = 21,851.19 × 9,866.07
  4. Step 4: Simplify right side
    15,832.49x = 215,585,370.12
  5. Step 5: Solve for x
    x = 215,585,370.12/15,832.49
  6. Step 6: Final answer
    x = 13,616.65

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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.