Home / 19,576.84-27,015.65-11,078.80

Finding the Fourth Proportional to 19,576.84, 27,015.65 and 11,078.80

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Solution

The fourth proportional to 19,576.84, 27,015.65 and 11,078.80 is: 15,288.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,576.84 : 27,015.65 = 11,078.80 : x
  2. Step 2: Convert to fraction form
    19,576.84/27,015.65 = 11,078.80/x
  3. Step 3: Cross multiply
    19,576.84x = 27,015.65 × 11,078.80
  4. Step 4: Simplify right side
    19,576.84x = 299,301,116.11
  5. Step 5: Solve for x
    x = 299,301,116.11/19,576.84
  6. Step 6: Final answer
    x = 15,288.53

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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.