Home / 15,127.37-20,874.16-8,411.91

Finding the Fourth Proportional to 15,127.37, 20,874.16 and 8,411.91

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Solution

The fourth proportional to 15,127.37, 20,874.16 and 8,411.91 is: 11,607.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.37 : 20,874.16 = 8,411.91 : x
  2. Step 2: Convert to fraction form
    15,127.37/20,874.16 = 8,411.91/x
  3. Step 3: Cross multiply
    15,127.37x = 20,874.16 × 8,411.91
  4. Step 4: Simplify right side
    15,127.37x = 175,591,555.25
  5. Step 5: Solve for x
    x = 175,591,555.25/15,127.37
  6. Step 6: Final answer
    x = 11,607.54

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1.5x scale

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.