Home / 12,340.28-18,511.95-4,018.07

Finding the Fourth Proportional to 12,340.28, 18,511.95 and 4,018.07

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Solution

The fourth proportional to 12,340.28, 18,511.95 and 4,018.07 is: 6,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.28 : 18,511.95 = 4,018.07 : x
  2. Step 2: Convert to fraction form
    12,340.28/18,511.95 = 4,018.07/x
  3. Step 3: Cross multiply
    12,340.28x = 18,511.95 × 4,018.07
  4. Step 4: Simplify right side
    12,340.28x = 74,382,218.38
  5. Step 5: Solve for x
    x = 74,382,218.38/12,340.28
  6. Step 6: Final answer
    x = 6,027.60

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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.