Home / 13,708.06-18,926.28-12,766.28

Finding the Fourth Proportional to 13,708.06, 18,926.28 and 12,766.28

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Solution

The fourth proportional to 13,708.06, 18,926.28 and 12,766.28 is: 17,625.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.06 : 18,926.28 = 12,766.28 : x
  2. Step 2: Convert to fraction form
    13,708.06/18,926.28 = 12,766.28/x
  3. Step 3: Cross multiply
    13,708.06x = 18,926.28 × 12,766.28
  4. Step 4: Simplify right side
    13,708.06x = 241,618,095.21
  5. Step 5: Solve for x
    x = 241,618,095.21/13,708.06
  6. Step 6: Final answer
    x = 17,625.99

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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.