Home / 8,936.20-12,319.86-7,536.52

Finding the Fourth Proportional to 8,936.20, 12,319.86 and 7,536.52

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Solution

The fourth proportional to 8,936.20, 12,319.86 and 7,536.52 is: 10,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.20 : 12,319.86 = 7,536.52 : x
  2. Step 2: Convert to fraction form
    8,936.20/12,319.86 = 7,536.52/x
  3. Step 3: Cross multiply
    8,936.20x = 12,319.86 × 7,536.52
  4. Step 4: Simplify right side
    8,936.20x = 92,848,871.29
  5. Step 5: Solve for x
    x = 92,848,871.29/8,936.20
  6. Step 6: Final answer
    x = 10,390.20

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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.