Home / 11,283.36-16,920.36-4,262.15

Finding the Fourth Proportional to 11,283.36, 16,920.36 and 4,262.15

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Solution

The fourth proportional to 11,283.36, 16,920.36 and 4,262.15 is: 6,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,283.36 : 16,920.36 = 4,262.15 : x
  2. Step 2: Convert to fraction form
    11,283.36/16,920.36 = 4,262.15/x
  3. Step 3: Cross multiply
    11,283.36x = 16,920.36 × 4,262.15
  4. Step 4: Simplify right side
    11,283.36x = 72,117,027.77
  5. Step 5: Solve for x
    x = 72,117,027.77/11,283.36
  6. Step 6: Final answer
    x = 6,391.45

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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.