Home / 6,643.66-9,166.04-4,287.36

Finding the Fourth Proportional to 6,643.66, 9,166.04 and 4,287.36

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Solution

The fourth proportional to 6,643.66, 9,166.04 and 4,287.36 is: 5,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.66 : 9,166.04 = 4,287.36 : x
  2. Step 2: Convert to fraction form
    6,643.66/9,166.04 = 4,287.36/x
  3. Step 3: Cross multiply
    6,643.66x = 9,166.04 × 4,287.36
  4. Step 4: Simplify right side
    6,643.66x = 39,298,113.25
  5. Step 5: Solve for x
    x = 39,298,113.25/6,643.66
  6. Step 6: Final answer
    x = 5,915.13

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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.