Home / 8,284.58-11,436.95-6,391.91

Finding the Fourth Proportional to 8,284.58, 11,436.95 and 6,391.91

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Solution

The fourth proportional to 8,284.58, 11,436.95 and 6,391.91 is: 8,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.58 : 11,436.95 = 6,391.91 : x
  2. Step 2: Convert to fraction form
    8,284.58/11,436.95 = 6,391.91/x
  3. Step 3: Cross multiply
    8,284.58x = 11,436.95 × 6,391.91
  4. Step 4: Simplify right side
    8,284.58x = 73,103,955.07
  5. Step 5: Solve for x
    x = 73,103,955.07/8,284.58
  6. Step 6: Final answer
    x = 8,824.10

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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.