Home / 15,125.67-20,873.32-8,411.27

Finding the Fourth Proportional to 15,125.67, 20,873.32 and 8,411.27

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Solution

The fourth proportional to 15,125.67, 20,873.32 and 8,411.27 is: 11,607.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.67 : 20,873.32 = 8,411.27 : x
  2. Step 2: Convert to fraction form
    15,125.67/20,873.32 = 8,411.27/x
  3. Step 3: Cross multiply
    15,125.67x = 20,873.32 × 8,411.27
  4. Step 4: Simplify right side
    15,125.67x = 175,571,004.92
  5. Step 5: Solve for x
    x = 175,571,004.92/15,125.67
  6. Step 6: Final answer
    x = 11,607.49

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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.