Home / 8,929.60-12,322.24-5,392

Finding the Fourth Proportional to 8,929.60, 12,322.24 and 5,392

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Solution

The fourth proportional to 8,929.60, 12,322.24 and 5,392 is: 7,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.60 : 12,322.24 = 5,392 : x
  2. Step 2: Convert to fraction form
    8,929.60/12,322.24 = 5,392/x
  3. Step 3: Cross multiply
    8,929.60x = 12,322.24 × 5,392
  4. Step 4: Simplify right side
    8,929.60x = 66,441,518.08
  5. Step 5: Solve for x
    x = 66,441,518.08/8,929.60
  6. Step 6: Final answer
    x = 7,440.59

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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.