Home / 14,215.84-19,617.48-8,165.92

Finding the Fourth Proportional to 14,215.84, 19,617.48 and 8,165.92

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Solution

The fourth proportional to 14,215.84, 19,617.48 and 8,165.92 is: 11,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.84 : 19,617.48 = 8,165.92 : x
  2. Step 2: Convert to fraction form
    14,215.84/19,617.48 = 8,165.92/x
  3. Step 3: Cross multiply
    14,215.84x = 19,617.48 × 8,165.92
  4. Step 4: Simplify right side
    14,215.84x = 160,194,772.28
  5. Step 5: Solve for x
    x = 160,194,772.28/14,215.84
  6. Step 6: Final answer
    x = 11,268.75

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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.