Home / 13,005.40-19,508.04-4,240.30

Finding the Fourth Proportional to 13,005.40, 19,508.04 and 4,240.30

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Solution

The fourth proportional to 13,005.40, 19,508.04 and 4,240.30 is: 6,360.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.40 : 19,508.04 = 4,240.30 : x
  2. Step 2: Convert to fraction form
    13,005.40/19,508.04 = 4,240.30/x
  3. Step 3: Cross multiply
    13,005.40x = 19,508.04 × 4,240.30
  4. Step 4: Simplify right side
    13,005.40x = 82,719,942.01
  5. Step 5: Solve for x
    x = 82,719,942.01/13,005.40
  6. Step 6: Final answer
    x = 6,360.43

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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.