Home / 12,180.53-18,273.63-5,161.14

Finding the Fourth Proportional to 12,180.53, 18,273.63 and 5,161.14

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Solution

The fourth proportional to 12,180.53, 18,273.63 and 5,161.14 is: 7,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.53 : 18,273.63 = 5,161.14 : x
  2. Step 2: Convert to fraction form
    12,180.53/18,273.63 = 5,161.14/x
  3. Step 3: Cross multiply
    12,180.53x = 18,273.63 × 5,161.14
  4. Step 4: Simplify right side
    12,180.53x = 94,312,762.74
  5. Step 5: Solve for x
    x = 94,312,762.74/12,180.53
  6. Step 6: Final answer
    x = 7,742.91

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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.