Home / 15,341.97-21,170.61-9,294.42

Finding the Fourth Proportional to 15,341.97, 21,170.61 and 9,294.42

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Solution

The fourth proportional to 15,341.97, 21,170.61 and 9,294.42 is: 12,825.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.97 : 21,170.61 = 9,294.42 : x
  2. Step 2: Convert to fraction form
    15,341.97/21,170.61 = 9,294.42/x
  3. Step 3: Cross multiply
    15,341.97x = 21,170.61 × 9,294.42
  4. Step 4: Simplify right side
    15,341.97x = 196,768,541.00
  5. Step 5: Solve for x
    x = 196,768,541.00/15,341.97
  6. Step 6: Final answer
    x = 12,825.51

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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.