Home / 12,008.47-18,015.51-4,111.07

Finding the Fourth Proportional to 12,008.47, 18,015.51 and 4,111.07

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Solution

The fourth proportional to 12,008.47, 18,015.51 and 4,111.07 is: 6,167.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008.47 : 18,015.51 = 4,111.07 : x
  2. Step 2: Convert to fraction form
    12,008.47/18,015.51 = 4,111.07/x
  3. Step 3: Cross multiply
    12,008.47x = 18,015.51 × 4,111.07
  4. Step 4: Simplify right side
    12,008.47x = 74,063,022.70
  5. Step 5: Solve for x
    x = 74,063,022.70/12,008.47
  6. Step 6: Final answer
    x = 6,167.57

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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.