Home / 13,778.19-19,008.24-8,996.48

Finding the Fourth Proportional to 13,778.19, 19,008.24 and 8,996.48

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Solution

The fourth proportional to 13,778.19, 19,008.24 and 8,996.48 is: 12,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.19 : 19,008.24 = 8,996.48 : x
  2. Step 2: Convert to fraction form
    13,778.19/19,008.24 = 8,996.48/x
  3. Step 3: Cross multiply
    13,778.19x = 19,008.24 × 8,996.48
  4. Step 4: Simplify right side
    13,778.19x = 171,007,351.02
  5. Step 5: Solve for x
    x = 171,007,351.02/13,778.19
  6. Step 6: Final answer
    x = 12,411.45

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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.