Home / 12,206.77-18,314.55-4,807.13

Finding the Fourth Proportional to 12,206.77, 18,314.55 and 4,807.13

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Solution

The fourth proportional to 12,206.77, 18,314.55 and 4,807.13 is: 7,212.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.77 : 18,314.55 = 4,807.13 : x
  2. Step 2: Convert to fraction form
    12,206.77/18,314.55 = 4,807.13/x
  3. Step 3: Cross multiply
    12,206.77x = 18,314.55 × 4,807.13
  4. Step 4: Simplify right side
    12,206.77x = 88,040,331.17
  5. Step 5: Solve for x
    x = 88,040,331.17/12,206.77
  6. Step 6: Final answer
    x = 7,212.42

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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.