Home / 12,280.76-18,422.34-4,883.56

Finding the Fourth Proportional to 12,280.76, 18,422.34 and 4,883.56

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Solution

The fourth proportional to 12,280.76, 18,422.34 and 4,883.56 is: 7,325.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.76 : 18,422.34 = 4,883.56 : x
  2. Step 2: Convert to fraction form
    12,280.76/18,422.34 = 4,883.56/x
  3. Step 3: Cross multiply
    12,280.76x = 18,422.34 × 4,883.56
  4. Step 4: Simplify right side
    12,280.76x = 89,966,602.73
  5. Step 5: Solve for x
    x = 89,966,602.73/12,280.76
  6. Step 6: Final answer
    x = 7,325.82

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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.