Home / 13,876.90-20,817.08-4,514.40

Finding the Fourth Proportional to 13,876.90, 20,817.08 and 4,514.40

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Solution

The fourth proportional to 13,876.90, 20,817.08 and 4,514.40 is: 6,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.90 : 20,817.08 = 4,514.40 : x
  2. Step 2: Convert to fraction form
    13,876.90/20,817.08 = 4,514.40/x
  3. Step 3: Cross multiply
    13,876.90x = 20,817.08 × 4,514.40
  4. Step 4: Simplify right side
    13,876.90x = 93,976,698.74
  5. Step 5: Solve for x
    x = 93,976,698.74/13,876.90
  6. Step 6: Final answer
    x = 6,772.17

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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.