Home / 13,619.90-20,417.51-9,461.85

Finding the Fourth Proportional to 13,619.90, 20,417.51 and 9,461.85

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Solution

The fourth proportional to 13,619.90, 20,417.51 and 9,461.85 is: 14,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.90 : 20,417.51 = 9,461.85 : x
  2. Step 2: Convert to fraction form
    13,619.90/20,417.51 = 9,461.85/x
  3. Step 3: Cross multiply
    13,619.90x = 20,417.51 × 9,461.85
  4. Step 4: Simplify right side
    13,619.90x = 193,187,440.65
  5. Step 5: Solve for x
    x = 193,187,440.65/13,619.90
  6. Step 6: Final answer
    x = 14,184.21

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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.