Home / 11,769.17-17,660.66-4,378.77

Finding the Fourth Proportional to 11,769.17, 17,660.66 and 4,378.77

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Solution

The fourth proportional to 11,769.17, 17,660.66 and 4,378.77 is: 6,570.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.17 : 17,660.66 = 4,378.77 : x
  2. Step 2: Convert to fraction form
    11,769.17/17,660.66 = 4,378.77/x
  3. Step 3: Cross multiply
    11,769.17x = 17,660.66 × 4,378.77
  4. Step 4: Simplify right side
    11,769.17x = 77,331,946.29
  5. Step 5: Solve for x
    x = 77,331,946.29/11,769.17
  6. Step 6: Final answer
    x = 6,570.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.