Home / 8,784.32-13,178.36-3,237.68

Finding the Fourth Proportional to 8,784.32, 13,178.36 and 3,237.68

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Solution

The fourth proportional to 8,784.32, 13,178.36 and 3,237.68 is: 4,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.32 : 13,178.36 = 3,237.68 : x
  2. Step 2: Convert to fraction form
    8,784.32/13,178.36 = 3,237.68/x
  3. Step 3: Cross multiply
    8,784.32x = 13,178.36 × 3,237.68
  4. Step 4: Simplify right side
    8,784.32x = 42,667,312.60
  5. Step 5: Solve for x
    x = 42,667,312.60/8,784.32
  6. Step 6: Final answer
    x = 4,857.21

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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.