Home / 19,709.76-29,561.28-6,560.64

Finding the Fourth Proportional to 19,709.76, 29,561.28 and 6,560.64

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Solution

The fourth proportional to 19,709.76, 29,561.28 and 6,560.64 is: 9,839.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,709.76 : 29,561.28 = 6,560.64 : x
  2. Step 2: Convert to fraction form
    19,709.76/29,561.28 = 6,560.64/x
  3. Step 3: Cross multiply
    19,709.76x = 29,561.28 × 6,560.64
  4. Step 4: Simplify right side
    19,709.76x = 193,940,916.02
  5. Step 5: Solve for x
    x = 193,940,916.02/19,709.76
  6. Step 6: Final answer
    x = 9,839.84

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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.