Home / 18,420.82-25,424.06-10,866.72

Finding the Fourth Proportional to 18,420.82, 25,424.06 and 10,866.72

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Solution

The fourth proportional to 18,420.82, 25,424.06 and 10,866.72 is: 14,998.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.82 : 25,424.06 = 10,866.72 : x
  2. Step 2: Convert to fraction form
    18,420.82/25,424.06 = 10,866.72/x
  3. Step 3: Cross multiply
    18,420.82x = 25,424.06 × 10,866.72
  4. Step 4: Simplify right side
    18,420.82x = 276,276,141.28
  5. Step 5: Solve for x
    x = 276,276,141.28/18,420.82
  6. Step 6: Final answer
    x = 14,998.04

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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.