Home / 10,945.76-15,091.80-8,823.56

Finding the Fourth Proportional to 10,945.76, 15,091.80 and 8,823.56

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Solution

The fourth proportional to 10,945.76, 15,091.80 and 8,823.56 is: 12,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.76 : 15,091.80 = 8,823.56 : x
  2. Step 2: Convert to fraction form
    10,945.76/15,091.80 = 8,823.56/x
  3. Step 3: Cross multiply
    10,945.76x = 15,091.80 × 8,823.56
  4. Step 4: Simplify right side
    10,945.76x = 133,163,402.81
  5. Step 5: Solve for x
    x = 133,163,402.81/10,945.76
  6. Step 6: Final answer
    x = 12,165.75

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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.