Home / 6,140.88-9,192.96-5,320.08

Finding the Fourth Proportional to 6,140.88, 9,192.96 and 5,320.08

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Solution

The fourth proportional to 6,140.88, 9,192.96 and 5,320.08 is: 7,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.88 : 9,192.96 = 5,320.08 : x
  2. Step 2: Convert to fraction form
    6,140.88/9,192.96 = 5,320.08/x
  3. Step 3: Cross multiply
    6,140.88x = 9,192.96 × 5,320.08
  4. Step 4: Simplify right side
    6,140.88x = 48,907,282.64
  5. Step 5: Solve for x
    x = 48,907,282.64/6,140.88
  6. Step 6: Final answer
    x = 7,964.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.