Home / 11,708.14-16,153.96-6,990.70

Finding the Fourth Proportional to 11,708.14, 16,153.96 and 6,990.70

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Solution

The fourth proportional to 11,708.14, 16,153.96 and 6,990.70 is: 9,645.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,708.14 : 16,153.96 = 6,990.70 : x
  2. Step 2: Convert to fraction form
    11,708.14/16,153.96 = 6,990.70/x
  3. Step 3: Cross multiply
    11,708.14x = 16,153.96 × 6,990.70
  4. Step 4: Simplify right side
    11,708.14x = 112,927,488.17
  5. Step 5: Solve for x
    x = 112,927,488.17/11,708.14
  6. Step 6: Final answer
    x = 9,645.21

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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.