Home / 19,115.21-28,666.31-7,266.13

Finding the Fourth Proportional to 19,115.21, 28,666.31 and 7,266.13

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Solution

The fourth proportional to 19,115.21, 28,666.31 and 7,266.13 is: 10,896.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.21 : 28,666.31 = 7,266.13 : x
  2. Step 2: Convert to fraction form
    19,115.21/28,666.31 = 7,266.13/x
  3. Step 3: Cross multiply
    19,115.21x = 28,666.31 × 7,266.13
  4. Step 4: Simplify right side
    19,115.21x = 208,293,081.58
  5. Step 5: Solve for x
    x = 208,293,081.58/19,115.21
  6. Step 6: Final answer
    x = 10,896.72

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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.