Home / 6,651.39-9,172.51-4,378.66

Finding the Fourth Proportional to 6,651.39, 9,172.51 and 4,378.66

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Solution

The fourth proportional to 6,651.39, 9,172.51 and 4,378.66 is: 6,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.39 : 9,172.51 = 4,378.66 : x
  2. Step 2: Convert to fraction form
    6,651.39/9,172.51 = 4,378.66/x
  3. Step 3: Cross multiply
    6,651.39x = 9,172.51 × 4,378.66
  4. Step 4: Simplify right side
    6,651.39x = 40,163,302.64
  5. Step 5: Solve for x
    x = 40,163,302.64/6,651.39
  6. Step 6: Final answer
    x = 6,038.33

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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.