Home / 9,072.63-12,520.85-5,537.79

Finding the Fourth Proportional to 9,072.63, 12,520.85 and 5,537.79

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Solution

The fourth proportional to 9,072.63, 12,520.85 and 5,537.79 is: 7,642.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072.63 : 12,520.85 = 5,537.79 : x
  2. Step 2: Convert to fraction form
    9,072.63/12,520.85 = 5,537.79/x
  3. Step 3: Cross multiply
    9,072.63x = 12,520.85 × 5,537.79
  4. Step 4: Simplify right side
    9,072.63x = 69,337,810.23
  5. Step 5: Solve for x
    x = 69,337,810.23/9,072.63
  6. Step 6: Final answer
    x = 7,642.53

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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.