Home / 13,926.57-20,870.90-7,677.22

Finding the Fourth Proportional to 13,926.57, 20,870.90 and 7,677.22

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Solution

The fourth proportional to 13,926.57, 20,870.90 and 7,677.22 is: 11,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.57 : 20,870.90 = 7,677.22 : x
  2. Step 2: Convert to fraction form
    13,926.57/20,870.90 = 7,677.22/x
  3. Step 3: Cross multiply
    13,926.57x = 20,870.90 × 7,677.22
  4. Step 4: Simplify right side
    13,926.57x = 160,230,490.90
  5. Step 5: Solve for x
    x = 160,230,490.90/13,926.57
  6. Step 6: Final answer
    x = 11,505.38

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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.