Home / 12,712.24-17,527.64-10,940.80

Finding the Fourth Proportional to 12,712.24, 17,527.64 and 10,940.80

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Solution

The fourth proportional to 12,712.24, 17,527.64 and 10,940.80 is: 15,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.24 : 17,527.64 = 10,940.80 : x
  2. Step 2: Convert to fraction form
    12,712.24/17,527.64 = 10,940.80/x
  3. Step 3: Cross multiply
    12,712.24x = 17,527.64 × 10,940.80
  4. Step 4: Simplify right side
    12,712.24x = 191,766,403.71
  5. Step 5: Solve for x
    x = 191,766,403.71/12,712.24
  6. Step 6: Final answer
    x = 15,085.18

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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.