Home / 17,668.82-26,445.54-12,987.60

Finding the Fourth Proportional to 17,668.82, 26,445.54 and 12,987.60

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Solution

The fourth proportional to 17,668.82, 26,445.54 and 12,987.60 is: 19,439.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,668.82 : 26,445.54 = 12,987.60 : x
  2. Step 2: Convert to fraction form
    17,668.82/26,445.54 = 12,987.60/x
  3. Step 3: Cross multiply
    17,668.82x = 26,445.54 × 12,987.60
  4. Step 4: Simplify right side
    17,668.82x = 343,464,095.30
  5. Step 5: Solve for x
    x = 343,464,095.30/17,668.82
  6. Step 6: Final answer
    x = 19,439.00

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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.