Home / 14,252.25-19,668.72-8,120.15

Finding the Fourth Proportional to 14,252.25, 19,668.72 and 8,120.15

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Solution

The fourth proportional to 14,252.25, 19,668.72 and 8,120.15 is: 11,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,252.25 : 19,668.72 = 8,120.15 : x
  2. Step 2: Convert to fraction form
    14,252.25/19,668.72 = 8,120.15/x
  3. Step 3: Cross multiply
    14,252.25x = 19,668.72 × 8,120.15
  4. Step 4: Simplify right side
    14,252.25x = 159,712,962.57
  5. Step 5: Solve for x
    x = 159,712,962.57/14,252.25
  6. Step 6: Final answer
    x = 11,206.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.