Home / 10,877.82-15,009.18-6,161.19

Finding the Fourth Proportional to 10,877.82, 15,009.18 and 6,161.19

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Solution

The fourth proportional to 10,877.82, 15,009.18 and 6,161.19 is: 8,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.82 : 15,009.18 = 6,161.19 : x
  2. Step 2: Convert to fraction form
    10,877.82/15,009.18 = 6,161.19/x
  3. Step 3: Cross multiply
    10,877.82x = 15,009.18 × 6,161.19
  4. Step 4: Simplify right side
    10,877.82x = 92,474,409.72
  5. Step 5: Solve for x
    x = 92,474,409.72/10,877.82
  6. Step 6: Final answer
    x = 8,501.19

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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.