Home / 8,890.72-13,334.56-3,695.20

Finding the Fourth Proportional to 8,890.72, 13,334.56 and 3,695.20

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Solution

The fourth proportional to 8,890.72, 13,334.56 and 3,695.20 is: 5,542.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.72 : 13,334.56 = 3,695.20 : x
  2. Step 2: Convert to fraction form
    8,890.72/13,334.56 = 3,695.20/x
  3. Step 3: Cross multiply
    8,890.72x = 13,334.56 × 3,695.20
  4. Step 4: Simplify right side
    8,890.72x = 49,273,866.11
  5. Step 5: Solve for x
    x = 49,273,866.11/8,890.72
  6. Step 6: Final answer
    x = 5,542.17

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1.5x scale

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.