Home / 10,681.80-14,738.19-6,651.78

Finding the Fourth Proportional to 10,681.80, 14,738.19 and 6,651.78

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Solution

The fourth proportional to 10,681.80, 14,738.19 and 6,651.78 is: 9,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,681.80 : 14,738.19 = 6,651.78 : x
  2. Step 2: Convert to fraction form
    10,681.80/14,738.19 = 6,651.78/x
  3. Step 3: Cross multiply
    10,681.80x = 14,738.19 × 6,651.78
  4. Step 4: Simplify right side
    10,681.80x = 98,035,197.48
  5. Step 5: Solve for x
    x = 98,035,197.48/10,681.80
  6. Step 6: Final answer
    x = 9,177.78

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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.