Home / 13,856.24-19,121.64-8,549.84

Finding the Fourth Proportional to 13,856.24, 19,121.64 and 8,549.84

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Solution

The fourth proportional to 13,856.24, 19,121.64 and 8,549.84 is: 11,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.24 : 19,121.64 = 8,549.84 : x
  2. Step 2: Convert to fraction form
    13,856.24/19,121.64 = 8,549.84/x
  3. Step 3: Cross multiply
    13,856.24x = 19,121.64 × 8,549.84
  4. Step 4: Simplify right side
    13,856.24x = 163,486,962.54
  5. Step 5: Solve for x
    x = 163,486,962.54/13,856.24
  6. Step 6: Final answer
    x = 11,798.80

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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.