Home / 12,838.68-17,716.77-7,173.35

Finding the Fourth Proportional to 12,838.68, 17,716.77 and 7,173.35

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Solution

The fourth proportional to 12,838.68, 17,716.77 and 7,173.35 is: 9,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838.68 : 17,716.77 = 7,173.35 : x
  2. Step 2: Convert to fraction form
    12,838.68/17,716.77 = 7,173.35/x
  3. Step 3: Cross multiply
    12,838.68x = 17,716.77 × 7,173.35
  4. Step 4: Simplify right side
    12,838.68x = 127,088,503.50
  5. Step 5: Solve for x
    x = 127,088,503.50/12,838.68
  6. Step 6: Final answer
    x = 9,898.88

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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.