Home / 14,304.70-21,408.45-12,555.10

Finding the Fourth Proportional to 14,304.70, 21,408.45 and 12,555.10

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Solution

The fourth proportional to 14,304.70, 21,408.45 and 12,555.10 is: 18,789.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,304.70 : 21,408.45 = 12,555.10 : x
  2. Step 2: Convert to fraction form
    14,304.70/21,408.45 = 12,555.10/x
  3. Step 3: Cross multiply
    14,304.70x = 21,408.45 × 12,555.10
  4. Step 4: Simplify right side
    14,304.70x = 268,785,230.60
  5. Step 5: Solve for x
    x = 268,785,230.60/14,304.70
  6. Step 6: Final answer
    x = 18,789.99

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1.5x scale

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.