Home / 18,378.06-25,355.58-10,310.54

Finding the Fourth Proportional to 18,378.06, 25,355.58 and 10,310.54

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Solution

The fourth proportional to 18,378.06, 25,355.58 and 10,310.54 is: 14,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.06 : 25,355.58 = 10,310.54 : x
  2. Step 2: Convert to fraction form
    18,378.06/25,355.58 = 10,310.54/x
  3. Step 3: Cross multiply
    18,378.06x = 25,355.58 × 10,310.54
  4. Step 4: Simplify right side
    18,378.06x = 261,429,721.81
  5. Step 5: Solve for x
    x = 261,429,721.81/18,378.06
  6. Step 6: Final answer
    x = 14,225.10

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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.