Home / 12,713.79-17,556.45-8,244.75

Finding the Fourth Proportional to 12,713.79, 17,556.45 and 8,244.75

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Solution

The fourth proportional to 12,713.79, 17,556.45 and 8,244.75 is: 11,385.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.79 : 17,556.45 = 8,244.75 : x
  2. Step 2: Convert to fraction form
    12,713.79/17,556.45 = 8,244.75/x
  3. Step 3: Cross multiply
    12,713.79x = 17,556.45 × 8,244.75
  4. Step 4: Simplify right side
    12,713.79x = 144,748,541.14
  5. Step 5: Solve for x
    x = 144,748,541.14/12,713.79
  6. Step 6: Final answer
    x = 11,385.16

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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.