Home / 10,862.15-14,989.32-6,146.51

Finding the Fourth Proportional to 10,862.15, 14,989.32 and 6,146.51

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Solution

The fourth proportional to 10,862.15, 14,989.32 and 6,146.51 is: 8,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.15 : 14,989.32 = 6,146.51 : x
  2. Step 2: Convert to fraction form
    10,862.15/14,989.32 = 6,146.51/x
  3. Step 3: Cross multiply
    10,862.15x = 14,989.32 × 6,146.51
  4. Step 4: Simplify right side
    10,862.15x = 92,131,930.33
  5. Step 5: Solve for x
    x = 92,131,930.33/10,862.15
  6. Step 6: Final answer
    x = 8,481.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.