Home / 13,005.18-19,508.31-4,240.17

Finding the Fourth Proportional to 13,005.18, 19,508.31 and 4,240.17

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Solution

The fourth proportional to 13,005.18, 19,508.31 and 4,240.17 is: 6,360.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.18 : 19,508.31 = 4,240.17 : x
  2. Step 2: Convert to fraction form
    13,005.18/19,508.31 = 4,240.17/x
  3. Step 3: Cross multiply
    13,005.18x = 19,508.31 × 4,240.17
  4. Step 4: Simplify right side
    13,005.18x = 82,718,550.81
  5. Step 5: Solve for x
    x = 82,718,550.81/13,005.18
  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.