Home / 13,822.24-19,077.76-8,785.48

Finding the Fourth Proportional to 13,822.24, 19,077.76 and 8,785.48

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Solution

The fourth proportional to 13,822.24, 19,077.76 and 8,785.48 is: 12,125.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.24 : 19,077.76 = 8,785.48 : x
  2. Step 2: Convert to fraction form
    13,822.24/19,077.76 = 8,785.48/x
  3. Step 3: Cross multiply
    13,822.24x = 19,077.76 × 8,785.48
  4. Step 4: Simplify right side
    13,822.24x = 167,607,278.92
  5. Step 5: Solve for x
    x = 167,607,278.92/13,822.24
  6. Step 6: Final answer
    x = 12,125.91

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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.