Home / 11,127.04-15,355.32-6,411.28

Finding the Fourth Proportional to 11,127.04, 15,355.32 and 6,411.28

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Solution

The fourth proportional to 11,127.04, 15,355.32 and 6,411.28 is: 8,847.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.04 : 15,355.32 = 6,411.28 : x
  2. Step 2: Convert to fraction form
    11,127.04/15,355.32 = 6,411.28/x
  3. Step 3: Cross multiply
    11,127.04x = 15,355.32 × 6,411.28
  4. Step 4: Simplify right side
    11,127.04x = 98,447,256.01
  5. Step 5: Solve for x
    x = 98,447,256.01/11,127.04
  6. Step 6: Final answer
    x = 8,847.57

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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.