Home / 13,087.84-19,595.78-9,143.04

Finding the Fourth Proportional to 13,087.84, 19,595.78 and 9,143.04

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Solution

The fourth proportional to 13,087.84, 19,595.78 and 9,143.04 is: 13,689.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.84 : 19,595.78 = 9,143.04 : x
  2. Step 2: Convert to fraction form
    13,087.84/19,595.78 = 9,143.04/x
  3. Step 3: Cross multiply
    13,087.84x = 19,595.78 × 9,143.04
  4. Step 4: Simplify right side
    13,087.84x = 179,165,000.37
  5. Step 5: Solve for x
    x = 179,165,000.37/13,087.84
  6. Step 6: Final answer
    x = 13,689.42

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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.