Home / 8,355.80-11,531.13-4,579.31

Finding the Fourth Proportional to 8,355.80, 11,531.13 and 4,579.31

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Solution

The fourth proportional to 8,355.80, 11,531.13 and 4,579.31 is: 6,319.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.80 : 11,531.13 = 4,579.31 : x
  2. Step 2: Convert to fraction form
    8,355.80/11,531.13 = 4,579.31/x
  3. Step 3: Cross multiply
    8,355.80x = 11,531.13 × 4,579.31
  4. Step 4: Simplify right side
    8,355.80x = 52,804,630.58
  5. Step 5: Solve for x
    x = 52,804,630.58/8,355.80
  6. Step 6: Final answer
    x = 6,319.52

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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.