Home / 14,166.60-21,334.23-12,339.78

Finding the Fourth Proportional to 14,166.60, 21,334.23 and 12,339.78

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Solution

The fourth proportional to 14,166.60, 21,334.23 and 12,339.78 is: 18,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,166.60 : 21,334.23 = 12,339.78 : x
  2. Step 2: Convert to fraction form
    14,166.60/21,334.23 = 12,339.78/x
  3. Step 3: Cross multiply
    14,166.60x = 21,334.23 × 12,339.78
  4. Step 4: Simplify right side
    14,166.60x = 263,259,624.67
  5. Step 5: Solve for x
    x = 263,259,624.67/14,166.60
  6. Step 6: Final answer
    x = 18,583.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.