Home / 13,778.28-19,004.35-8,476.02

Finding the Fourth Proportional to 13,778.28, 19,004.35 and 8,476.02

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Solution

The fourth proportional to 13,778.28, 19,004.35 and 8,476.02 is: 11,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.28 : 19,004.35 = 8,476.02 : x
  2. Step 2: Convert to fraction form
    13,778.28/19,004.35 = 8,476.02/x
  3. Step 3: Cross multiply
    13,778.28x = 19,004.35 × 8,476.02
  4. Step 4: Simplify right side
    13,778.28x = 161,081,250.69
  5. Step 5: Solve for x
    x = 161,081,250.69/13,778.28
  6. Step 6: Final answer
    x = 11,690.95

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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.