Home / 14,254.11-21,385.77-6,857.58

Finding the Fourth Proportional to 14,254.11, 21,385.77 and 6,857.58

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Solution

The fourth proportional to 14,254.11, 21,385.77 and 6,857.58 is: 10,288.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,254.11 : 21,385.77 = 6,857.58 : x
  2. Step 2: Convert to fraction form
    14,254.11/21,385.77 = 6,857.58/x
  3. Step 3: Cross multiply
    14,254.11x = 21,385.77 × 6,857.58
  4. Step 4: Simplify right side
    14,254.11x = 146,654,628.64
  5. Step 5: Solve for x
    x = 146,654,628.64/14,254.11
  6. Step 6: Final answer
    x = 10,288.59

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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.