Home / 14,087.47-21,141.92-5,211.20

Finding the Fourth Proportional to 14,087.47, 21,141.92 and 5,211.20

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Solution

The fourth proportional to 14,087.47, 21,141.92 and 5,211.20 is: 7,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.47 : 21,141.92 = 5,211.20 : x
  2. Step 2: Convert to fraction form
    14,087.47/21,141.92 = 5,211.20/x
  3. Step 3: Cross multiply
    14,087.47x = 21,141.92 × 5,211.20
  4. Step 4: Simplify right side
    14,087.47x = 110,174,773.50
  5. Step 5: Solve for x
    x = 110,174,773.50/14,087.47
  6. Step 6: Final answer
    x = 7,820.76

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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.