Home / 18,440.06-25,443.32-10,885.19

Finding the Fourth Proportional to 18,440.06, 25,443.32 and 10,885.19

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Solution

The fourth proportional to 18,440.06, 25,443.32 and 10,885.19 is: 15,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440.06 : 25,443.32 = 10,885.19 : x
  2. Step 2: Convert to fraction form
    18,440.06/25,443.32 = 10,885.19/x
  3. Step 3: Cross multiply
    18,440.06x = 25,443.32 × 10,885.19
  4. Step 4: Simplify right side
    18,440.06x = 276,955,190.79
  5. Step 5: Solve for x
    x = 276,955,190.79/18,440.06
  6. Step 6: Final answer
    x = 15,019.22

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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.