Home / 11,178.02-15,425.91-6,142.54

Finding the Fourth Proportional to 11,178.02, 15,425.91 and 6,142.54

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Solution

The fourth proportional to 11,178.02, 15,425.91 and 6,142.54 is: 8,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.02 : 15,425.91 = 6,142.54 : x
  2. Step 2: Convert to fraction form
    11,178.02/15,425.91 = 6,142.54/x
  3. Step 3: Cross multiply
    11,178.02x = 15,425.91 × 6,142.54
  4. Step 4: Simplify right side
    11,178.02x = 94,754,230.65
  5. Step 5: Solve for x
    x = 94,754,230.65/11,178.02
  6. Step 6: Final answer
    x = 8,476.84

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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.