Home / 12,060.36-18,084.33-7,131.51

Finding the Fourth Proportional to 12,060.36, 18,084.33 and 7,131.51

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Solution

The fourth proportional to 12,060.36, 18,084.33 and 7,131.51 is: 10,693.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,060.36 : 18,084.33 = 7,131.51 : x
  2. Step 2: Convert to fraction form
    12,060.36/18,084.33 = 7,131.51/x
  3. Step 3: Cross multiply
    12,060.36x = 18,084.33 × 7,131.51
  4. Step 4: Simplify right side
    12,060.36x = 128,968,580.24
  5. Step 5: Solve for x
    x = 128,968,580.24/12,060.36
  6. Step 6: Final answer
    x = 10,693.59

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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.