Home / 15,694.49-21,675.39-9,740.36

Finding the Fourth Proportional to 15,694.49, 21,675.39 and 9,740.36

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Solution

The fourth proportional to 15,694.49, 21,675.39 and 9,740.36 is: 13,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.49 : 21,675.39 = 9,740.36 : x
  2. Step 2: Convert to fraction form
    15,694.49/21,675.39 = 9,740.36/x
  3. Step 3: Cross multiply
    15,694.49x = 21,675.39 × 9,740.36
  4. Step 4: Simplify right side
    15,694.49x = 211,126,101.74
  5. Step 5: Solve for x
    x = 211,126,101.74/15,694.49
  6. Step 6: Final answer
    x = 13,452.24

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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.