Home / 10,411.44-15,646.32-5,220.96

Finding the Fourth Proportional to 10,411.44, 15,646.32 and 5,220.96

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Solution

The fourth proportional to 10,411.44, 15,646.32 and 5,220.96 is: 7,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411.44 : 15,646.32 = 5,220.96 : x
  2. Step 2: Convert to fraction form
    10,411.44/15,646.32 = 5,220.96/x
  3. Step 3: Cross multiply
    10,411.44x = 15,646.32 × 5,220.96
  4. Step 4: Simplify right side
    10,411.44x = 81,688,810.87
  5. Step 5: Solve for x
    x = 81,688,810.87/10,411.44
  6. Step 6: Final answer
    x = 7,846.06

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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.