Home / 12,071.36-18,112.03-6,518.17

Finding the Fourth Proportional to 12,071.36, 18,112.03 and 6,518.17

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Solution

The fourth proportional to 12,071.36, 18,112.03 and 6,518.17 is: 9,779.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.36 : 18,112.03 = 6,518.17 : x
  2. Step 2: Convert to fraction form
    12,071.36/18,112.03 = 6,518.17/x
  3. Step 3: Cross multiply
    12,071.36x = 18,112.03 × 6,518.17
  4. Step 4: Simplify right side
    12,071.36x = 118,057,229.01
  5. Step 5: Solve for x
    x = 118,057,229.01/12,071.36
  6. Step 6: Final answer
    x = 9,779.95

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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.