Home / 11,690.43-16,126.61-7,908.54

Finding the Fourth Proportional to 11,690.43, 16,126.61 and 7,908.54

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Solution

The fourth proportional to 11,690.43, 16,126.61 and 7,908.54 is: 10,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.43 : 16,126.61 = 7,908.54 : x
  2. Step 2: Convert to fraction form
    11,690.43/16,126.61 = 7,908.54/x
  3. Step 3: Cross multiply
    11,690.43x = 16,126.61 × 7,908.54
  4. Step 4: Simplify right side
    11,690.43x = 127,537,900.71
  5. Step 5: Solve for x
    x = 127,537,900.71/11,690.43
  6. Step 6: Final answer
    x = 10,909.60

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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.