Home / 12,677.88-18,925.35-10,711.80

Finding the Fourth Proportional to 12,677.88, 18,925.35 and 10,711.80

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Solution

The fourth proportional to 12,677.88, 18,925.35 and 10,711.80 is: 15,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.88 : 18,925.35 = 10,711.80 : x
  2. Step 2: Convert to fraction form
    12,677.88/18,925.35 = 10,711.80/x
  3. Step 3: Cross multiply
    12,677.88x = 18,925.35 × 10,711.80
  4. Step 4: Simplify right side
    12,677.88x = 202,724,564.13
  5. Step 5: Solve for x
    x = 202,724,564.13/12,677.88
  6. Step 6: Final answer
    x = 15,990.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.