Home / 18,717.06-28,051.36-7,610.88

Finding the Fourth Proportional to 18,717.06, 28,051.36 and 7,610.88

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Solution

The fourth proportional to 18,717.06, 28,051.36 and 7,610.88 is: 11,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.06 : 28,051.36 = 7,610.88 : x
  2. Step 2: Convert to fraction form
    18,717.06/28,051.36 = 7,610.88/x
  3. Step 3: Cross multiply
    18,717.06x = 28,051.36 × 7,610.88
  4. Step 4: Simplify right side
    18,717.06x = 213,495,534.80
  5. Step 5: Solve for x
    x = 213,495,534.80/18,717.06
  6. Step 6: Final answer
    x = 11,406.47

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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.