Home / 14,215.47-19,621.25-8,249.06

Finding the Fourth Proportional to 14,215.47, 19,621.25 and 8,249.06

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Solution

The fourth proportional to 14,215.47, 19,621.25 and 8,249.06 is: 11,385.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.47 : 19,621.25 = 8,249.06 : x
  2. Step 2: Convert to fraction form
    14,215.47/19,621.25 = 8,249.06/x
  3. Step 3: Cross multiply
    14,215.47x = 19,621.25 × 8,249.06
  4. Step 4: Simplify right side
    14,215.47x = 161,856,953.67
  5. Step 5: Solve for x
    x = 161,856,953.67/14,215.47
  6. Step 6: Final answer
    x = 11,385.97

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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.