Home / 10,198.64-14,077.64-6,428.17

Finding the Fourth Proportional to 10,198.64, 14,077.64 and 6,428.17

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Solution

The fourth proportional to 10,198.64, 14,077.64 and 6,428.17 is: 8,873.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.64 : 14,077.64 = 6,428.17 : x
  2. Step 2: Convert to fraction form
    10,198.64/14,077.64 = 6,428.17/x
  3. Step 3: Cross multiply
    10,198.64x = 14,077.64 × 6,428.17
  4. Step 4: Simplify right side
    10,198.64x = 90,493,360.59
  5. Step 5: Solve for x
    x = 90,493,360.59/10,198.64
  6. Step 6: Final answer
    x = 8,873.08

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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.