Home / 8,472.38-11,692.77-5,242.64

Finding the Fourth Proportional to 8,472.38, 11,692.77 and 5,242.64

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Solution

The fourth proportional to 8,472.38, 11,692.77 and 5,242.64 is: 7,235.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.38 : 11,692.77 = 5,242.64 : x
  2. Step 2: Convert to fraction form
    8,472.38/11,692.77 = 5,242.64/x
  3. Step 3: Cross multiply
    8,472.38x = 11,692.77 × 5,242.64
  4. Step 4: Simplify right side
    8,472.38x = 61,300,983.71
  5. Step 5: Solve for x
    x = 61,300,983.71/8,472.38
  6. Step 6: Final answer
    x = 7,235.39

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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.