Home / 6,922.02-10,390.55-6,424.48

Finding the Fourth Proportional to 6,922.02, 10,390.55 and 6,424.48

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Solution

The fourth proportional to 6,922.02, 10,390.55 and 6,424.48 is: 9,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.02 : 10,390.55 = 6,424.48 : x
  2. Step 2: Convert to fraction form
    6,922.02/10,390.55 = 6,424.48/x
  3. Step 3: Cross multiply
    6,922.02x = 10,390.55 × 6,424.48
  4. Step 4: Simplify right side
    6,922.02x = 66,753,870.75
  5. Step 5: Solve for x
    x = 66,753,870.75/6,922.02
  6. Step 6: Final answer
    x = 9,643.70

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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.