Home / 14,385.20-19,801.68-12,402.32

Finding the Fourth Proportional to 14,385.20, 19,801.68 and 12,402.32

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Solution

The fourth proportional to 14,385.20, 19,801.68 and 12,402.32 is: 17,072.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.20 : 19,801.68 = 12,402.32 : x
  2. Step 2: Convert to fraction form
    14,385.20/19,801.68 = 12,402.32/x
  3. Step 3: Cross multiply
    14,385.20x = 19,801.68 × 12,402.32
  4. Step 4: Simplify right side
    14,385.20x = 245,586,771.90
  5. Step 5: Solve for x
    x = 245,586,771.90/14,385.20
  6. Step 6: Final answer
    x = 17,072.18

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1.5x scale

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.