Home / 18,926.88-26,116.80-10,968.72

Finding the Fourth Proportional to 18,926.88, 26,116.80 and 10,968.72

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Solution

The fourth proportional to 18,926.88, 26,116.80 and 10,968.72 is: 15,135.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.88 : 26,116.80 = 10,968.72 : x
  2. Step 2: Convert to fraction form
    18,926.88/26,116.80 = 10,968.72/x
  3. Step 3: Cross multiply
    18,926.88x = 26,116.80 × 10,968.72
  4. Step 4: Simplify right side
    18,926.88x = 286,467,866.50
  5. Step 5: Solve for x
    x = 286,467,866.50/18,926.88
  6. Step 6: Final answer
    x = 15,135.50

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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.