Home / 7,983.36-11,981.28-5,535.42

Finding the Fourth Proportional to 7,983.36, 11,981.28 and 5,535.42

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Solution

The fourth proportional to 7,983.36, 11,981.28 and 5,535.42 is: 8,307.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.36 : 11,981.28 = 5,535.42 : x
  2. Step 2: Convert to fraction form
    7,983.36/11,981.28 = 5,535.42/x
  3. Step 3: Cross multiply
    7,983.36x = 11,981.28 × 5,535.42
  4. Step 4: Simplify right side
    7,983.36x = 66,321,416.94
  5. Step 5: Solve for x
    x = 66,321,416.94/7,983.36
  6. Step 6: Final answer
    x = 8,307.46

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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.