Home / 14,215.32-19,621.20-8,248.32

Finding the Fourth Proportional to 14,215.32, 19,621.20 and 8,248.32

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Solution

The fourth proportional to 14,215.32, 19,621.20 and 8,248.32 is: 11,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.32 : 19,621.20 = 8,248.32 : x
  2. Step 2: Convert to fraction form
    14,215.32/19,621.20 = 8,248.32/x
  3. Step 3: Cross multiply
    14,215.32x = 19,621.20 × 8,248.32
  4. Step 4: Simplify right side
    14,215.32x = 161,841,936.38
  5. Step 5: Solve for x
    x = 161,841,936.38/14,215.32
  6. Step 6: Final answer
    x = 11,385.04

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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.