Home / 10,623.70-14,660.80-5,778.47

Finding the Fourth Proportional to 10,623.70, 14,660.80 and 5,778.47

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Solution

The fourth proportional to 10,623.70, 14,660.80 and 5,778.47 is: 7,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,623.70 : 14,660.80 = 5,778.47 : x
  2. Step 2: Convert to fraction form
    10,623.70/14,660.80 = 5,778.47/x
  3. Step 3: Cross multiply
    10,623.70x = 14,660.80 × 5,778.47
  4. Step 4: Simplify right side
    10,623.70x = 84,716,992.98
  5. Step 5: Solve for x
    x = 84,716,992.98/10,623.70
  6. Step 6: Final answer
    x = 7,974.34

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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.