Home / 10,877.39-15,009.79-6,161.67

Finding the Fourth Proportional to 10,877.39, 15,009.79 and 6,161.67

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Solution

The fourth proportional to 10,877.39, 15,009.79 and 6,161.67 is: 8,502.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.39 : 15,009.79 = 6,161.67 : x
  2. Step 2: Convert to fraction form
    10,877.39/15,009.79 = 6,161.67/x
  3. Step 3: Cross multiply
    10,877.39x = 15,009.79 × 6,161.67
  4. Step 4: Simplify right side
    10,877.39x = 92,485,372.75
  5. Step 5: Solve for x
    x = 92,485,372.75/10,877.39
  6. Step 6: Final answer
    x = 8,502.53

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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.