Home / 13,542.85-18,690.12-7,576.44

Finding the Fourth Proportional to 13,542.85, 18,690.12 and 7,576.44

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Solution

The fourth proportional to 13,542.85, 18,690.12 and 7,576.44 is: 10,456.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.85 : 18,690.12 = 7,576.44 : x
  2. Step 2: Convert to fraction form
    13,542.85/18,690.12 = 7,576.44/x
  3. Step 3: Cross multiply
    13,542.85x = 18,690.12 × 7,576.44
  4. Step 4: Simplify right side
    13,542.85x = 141,604,639.07
  5. Step 5: Solve for x
    x = 141,604,639.07/13,542.85
  6. Step 6: Final answer
    x = 10,456.04

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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.