Home / 18,307.28-27,429.56-9,993.12

Finding the Fourth Proportional to 18,307.28, 27,429.56 and 9,993.12

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Solution

The fourth proportional to 18,307.28, 27,429.56 and 9,993.12 is: 14,972.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.28 : 27,429.56 = 9,993.12 : x
  2. Step 2: Convert to fraction form
    18,307.28/27,429.56 = 9,993.12/x
  3. Step 3: Cross multiply
    18,307.28x = 27,429.56 × 9,993.12
  4. Step 4: Simplify right side
    18,307.28x = 274,106,834.66
  5. Step 5: Solve for x
    x = 274,106,834.66/18,307.28
  6. Step 6: Final answer
    x = 14,972.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.