Home / 15,871.24-21,905.94-10,272.52

Finding the Fourth Proportional to 15,871.24, 21,905.94 and 10,272.52

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Solution

The fourth proportional to 15,871.24, 21,905.94 and 10,272.52 is: 14,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.24 : 21,905.94 = 10,272.52 : x
  2. Step 2: Convert to fraction form
    15,871.24/21,905.94 = 10,272.52/x
  3. Step 3: Cross multiply
    15,871.24x = 21,905.94 × 10,272.52
  4. Step 4: Simplify right side
    15,871.24x = 225,029,206.77
  5. Step 5: Solve for x
    x = 225,029,206.77/15,871.24
  6. Step 6: Final answer
    x = 14,178.43

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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.