Home / 10,343.84-15,516.96-3,418.40

Finding the Fourth Proportional to 10,343.84, 15,516.96 and 3,418.40

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Solution

The fourth proportional to 10,343.84, 15,516.96 and 3,418.40 is: 5,128.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,343.84 : 15,516.96 = 3,418.40 : x
  2. Step 2: Convert to fraction form
    10,343.84/15,516.96 = 3,418.40/x
  3. Step 3: Cross multiply
    10,343.84x = 15,516.96 × 3,418.40
  4. Step 4: Simplify right side
    10,343.84x = 53,043,176.06
  5. Step 5: Solve for x
    x = 53,043,176.06/10,343.84
  6. Step 6: Final answer
    x = 5,128.00

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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.