Home / 18,828.72-25,983.98-10,331.28

Finding the Fourth Proportional to 18,828.72, 25,983.98 and 10,331.28

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Solution

The fourth proportional to 18,828.72, 25,983.98 and 10,331.28 is: 14,257.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.72 : 25,983.98 = 10,331.28 : x
  2. Step 2: Convert to fraction form
    18,828.72/25,983.98 = 10,331.28/x
  3. Step 3: Cross multiply
    18,828.72x = 25,983.98 × 10,331.28
  4. Step 4: Simplify right side
    18,828.72x = 268,447,772.89
  5. Step 5: Solve for x
    x = 268,447,772.89/18,828.72
  6. Step 6: Final answer
    x = 14,257.36

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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.