Home / 13,185.47-19,775.97-5,787.93

Finding the Fourth Proportional to 13,185.47, 19,775.97 and 5,787.93

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Solution

The fourth proportional to 13,185.47, 19,775.97 and 5,787.93 is: 8,680.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.47 : 19,775.97 = 5,787.93 : x
  2. Step 2: Convert to fraction form
    13,185.47/19,775.97 = 5,787.93/x
  3. Step 3: Cross multiply
    13,185.47x = 19,775.97 × 5,787.93
  4. Step 4: Simplify right side
    13,185.47x = 114,461,930.04
  5. Step 5: Solve for x
    x = 114,461,930.04/13,185.47
  6. Step 6: Final answer
    x = 8,680.92

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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.