Home / 10,137.26-13,988.76-5,660.80

Finding the Fourth Proportional to 10,137.26, 13,988.76 and 5,660.80

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Solution

The fourth proportional to 10,137.26, 13,988.76 and 5,660.80 is: 7,811.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.26 : 13,988.76 = 5,660.80 : x
  2. Step 2: Convert to fraction form
    10,137.26/13,988.76 = 5,660.80/x
  3. Step 3: Cross multiply
    10,137.26x = 13,988.76 × 5,660.80
  4. Step 4: Simplify right side
    10,137.26x = 79,187,572.61
  5. Step 5: Solve for x
    x = 79,187,572.61/10,137.26
  6. Step 6: Final answer
    x = 7,811.54

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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.