Home / 18,363.04-25,339.99-10,405.09

Finding the Fourth Proportional to 18,363.04, 25,339.99 and 10,405.09

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Solution

The fourth proportional to 18,363.04, 25,339.99 and 10,405.09 is: 14,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.04 : 25,339.99 = 10,405.09 : x
  2. Step 2: Convert to fraction form
    18,363.04/25,339.99 = 10,405.09/x
  3. Step 3: Cross multiply
    18,363.04x = 25,339.99 × 10,405.09
  4. Step 4: Simplify right side
    18,363.04x = 263,664,876.55
  5. Step 5: Solve for x
    x = 263,664,876.55/18,363.04
  6. Step 6: Final answer
    x = 14,358.45

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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.