Home / 15,687.36-21,655.68-10,029.84

Finding the Fourth Proportional to 15,687.36, 21,655.68 and 10,029.84

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Solution

The fourth proportional to 15,687.36, 21,655.68 and 10,029.84 is: 13,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687.36 : 21,655.68 = 10,029.84 : x
  2. Step 2: Convert to fraction form
    15,687.36/21,655.68 = 10,029.84/x
  3. Step 3: Cross multiply
    15,687.36x = 21,655.68 × 10,029.84
  4. Step 4: Simplify right side
    15,687.36x = 217,203,005.49
  5. Step 5: Solve for x
    x = 217,203,005.49/15,687.36
  6. Step 6: Final answer
    x = 13,845.73

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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.