Home / 13,029.30-19,554.87-5,639.40

Finding the Fourth Proportional to 13,029.30, 19,554.87 and 5,639.40

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Solution

The fourth proportional to 13,029.30, 19,554.87 and 5,639.40 is: 8,463.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029.30 : 19,554.87 = 5,639.40 : x
  2. Step 2: Convert to fraction form
    13,029.30/19,554.87 = 5,639.40/x
  3. Step 3: Cross multiply
    13,029.30x = 19,554.87 × 5,639.40
  4. Step 4: Simplify right side
    13,029.30x = 110,277,733.88
  5. Step 5: Solve for x
    x = 110,277,733.88/13,029.30
  6. Step 6: Final answer
    x = 8,463.83

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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.