Home / 18,363.33-25,341.93-10,405.28

Finding the Fourth Proportional to 18,363.33, 25,341.93 and 10,405.28

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Solution

The fourth proportional to 18,363.33, 25,341.93 and 10,405.28 is: 14,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.33 : 25,341.93 = 10,405.28 : x
  2. Step 2: Convert to fraction form
    18,363.33/25,341.93 = 10,405.28/x
  3. Step 3: Cross multiply
    18,363.33x = 25,341.93 × 10,405.28
  4. Step 4: Simplify right side
    18,363.33x = 263,689,940.75
  5. Step 5: Solve for x
    x = 263,689,940.75/18,363.33
  6. Step 6: Final answer
    x = 14,359.59

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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.