Home / 13,788.28-19,041.30-11,787.22

Finding the Fourth Proportional to 13,788.28, 19,041.30 and 11,787.22

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Solution

The fourth proportional to 13,788.28, 19,041.30 and 11,787.22 is: 16,277.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.28 : 19,041.30 = 11,787.22 : x
  2. Step 2: Convert to fraction form
    13,788.28/19,041.30 = 11,787.22/x
  3. Step 3: Cross multiply
    13,788.28x = 19,041.30 × 11,787.22
  4. Step 4: Simplify right side
    13,788.28x = 224,443,992.19
  5. Step 5: Solve for x
    x = 224,443,992.19/13,788.28
  6. Step 6: Final answer
    x = 16,277.88

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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.