Home / 13,188.72-19,787.24-5,799.40

Finding the Fourth Proportional to 13,188.72, 19,787.24 and 5,799.40

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Solution

The fourth proportional to 13,188.72, 19,787.24 and 5,799.40 is: 8,700.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.72 : 19,787.24 = 5,799.40 : x
  2. Step 2: Convert to fraction form
    13,188.72/19,787.24 = 5,799.40/x
  3. Step 3: Cross multiply
    13,188.72x = 19,787.24 × 5,799.40
  4. Step 4: Simplify right side
    13,188.72x = 114,754,119.66
  5. Step 5: Solve for x
    x = 114,754,119.66/13,188.72
  6. Step 6: Final answer
    x = 8,700.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.