Home / 18,100.84-25,013.47-13,616.81

Finding the Fourth Proportional to 18,100.84, 25,013.47 and 13,616.81

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Solution

The fourth proportional to 18,100.84, 25,013.47 and 13,616.81 is: 18,817.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.84 : 25,013.47 = 13,616.81 : x
  2. Step 2: Convert to fraction form
    18,100.84/25,013.47 = 13,616.81/x
  3. Step 3: Cross multiply
    18,100.84x = 25,013.47 × 13,616.81
  4. Step 4: Simplify right side
    18,100.84x = 340,603,647.80
  5. Step 5: Solve for x
    x = 340,603,647.80/18,100.84
  6. Step 6: Final answer
    x = 18,817.01

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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.