Home / 10,221.40-14,106.18-6,694.12

Finding the Fourth Proportional to 10,221.40, 14,106.18 and 6,694.12

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Solution

The fourth proportional to 10,221.40, 14,106.18 and 6,694.12 is: 9,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.40 : 14,106.18 = 6,694.12 : x
  2. Step 2: Convert to fraction form
    10,221.40/14,106.18 = 6,694.12/x
  3. Step 3: Cross multiply
    10,221.40x = 14,106.18 × 6,694.12
  4. Step 4: Simplify right side
    10,221.40x = 94,428,461.66
  5. Step 5: Solve for x
    x = 94,428,461.66/10,221.40
  6. Step 6: Final answer
    x = 9,238.31

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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.