Home / 14,221.05-19,625.40-7,847.76

Finding the Fourth Proportional to 14,221.05, 19,625.40 and 7,847.76

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Solution

The fourth proportional to 14,221.05, 19,625.40 and 7,847.76 is: 10,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.05 : 19,625.40 = 7,847.76 : x
  2. Step 2: Convert to fraction form
    14,221.05/19,625.40 = 7,847.76/x
  3. Step 3: Cross multiply
    14,221.05x = 19,625.40 × 7,847.76
  4. Step 4: Simplify right side
    14,221.05x = 154,015,330.98
  5. Step 5: Solve for x
    x = 154,015,330.98/14,221.05
  6. Step 6: Final answer
    x = 10,830.10

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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.