Home / 8,931.12-13,382.64-4,542.54

Finding the Fourth Proportional to 8,931.12, 13,382.64 and 4,542.54

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Solution

The fourth proportional to 8,931.12, 13,382.64 and 4,542.54 is: 6,806.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.12 : 13,382.64 = 4,542.54 : x
  2. Step 2: Convert to fraction form
    8,931.12/13,382.64 = 4,542.54/x
  3. Step 3: Cross multiply
    8,931.12x = 13,382.64 × 4,542.54
  4. Step 4: Simplify right side
    8,931.12x = 60,791,177.51
  5. Step 5: Solve for x
    x = 60,791,177.51/8,931.12
  6. Step 6: Final answer
    x = 6,806.67

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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.