Home / 8,439.40-11,646.66-5,297.32

Finding the Fourth Proportional to 8,439.40, 11,646.66 and 5,297.32

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Solution

The fourth proportional to 8,439.40, 11,646.66 and 5,297.32 is: 7,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.40 : 11,646.66 = 5,297.32 : x
  2. Step 2: Convert to fraction form
    8,439.40/11,646.66 = 5,297.32/x
  3. Step 3: Cross multiply
    8,439.40x = 11,646.66 × 5,297.32
  4. Step 4: Simplify right side
    8,439.40x = 61,696,084.95
  5. Step 5: Solve for x
    x = 61,696,084.95/8,439.40
  6. Step 6: Final answer
    x = 7,310.48

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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.