Home / 12,214.09-18,319.57-5,192.81

Finding the Fourth Proportional to 12,214.09, 18,319.57 and 5,192.81

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Solution

The fourth proportional to 12,214.09, 18,319.57 and 5,192.81 is: 7,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.09 : 18,319.57 = 5,192.81 : x
  2. Step 2: Convert to fraction form
    12,214.09/18,319.57 = 5,192.81/x
  3. Step 3: Cross multiply
    12,214.09x = 18,319.57 × 5,192.81
  4. Step 4: Simplify right side
    12,214.09x = 95,130,010.41
  5. Step 5: Solve for x
    x = 95,130,010.41/12,214.09
  6. Step 6: Final answer
    x = 7,788.55

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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.