Home / 15,356.82-21,186.99-10,054.56

Finding the Fourth Proportional to 15,356.82, 21,186.99 and 10,054.56

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Solution

The fourth proportional to 15,356.82, 21,186.99 and 10,054.56 is: 13,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356.82 : 21,186.99 = 10,054.56 : x
  2. Step 2: Convert to fraction form
    15,356.82/21,186.99 = 10,054.56/x
  3. Step 3: Cross multiply
    15,356.82x = 21,186.99 × 10,054.56
  4. Step 4: Simplify right side
    15,356.82x = 213,025,862.17
  5. Step 5: Solve for x
    x = 213,025,862.17/15,356.82
  6. Step 6: Final answer
    x = 13,871.74

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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.