Home / 13,398.74-18,496.61-8,929.94

Finding the Fourth Proportional to 13,398.74, 18,496.61 and 8,929.94

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Solution

The fourth proportional to 13,398.74, 18,496.61 and 8,929.94 is: 12,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.74 : 18,496.61 = 8,929.94 : x
  2. Step 2: Convert to fraction form
    13,398.74/18,496.61 = 8,929.94/x
  3. Step 3: Cross multiply
    13,398.74x = 18,496.61 × 8,929.94
  4. Step 4: Simplify right side
    13,398.74x = 165,173,617.50
  5. Step 5: Solve for x
    x = 165,173,617.50/13,398.74
  6. Step 6: Final answer
    x = 12,327.55

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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.