Home / 14,215.90-19,616.30-8,245.40

Finding the Fourth Proportional to 14,215.90, 19,616.30 and 8,245.40

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Solution

The fourth proportional to 14,215.90, 19,616.30 and 8,245.40 is: 11,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.90 : 19,616.30 = 8,245.40 : x
  2. Step 2: Convert to fraction form
    14,215.90/19,616.30 = 8,245.40/x
  3. Step 3: Cross multiply
    14,215.90x = 19,616.30 × 8,245.40
  4. Step 4: Simplify right side
    14,215.90x = 161,744,240.02
  5. Step 5: Solve for x
    x = 161,744,240.02/14,215.90
  6. Step 6: Final answer
    x = 11,377.70

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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.