Home / 15,357.18-21,194.96-8,644.12

Finding the Fourth Proportional to 15,357.18, 21,194.96 and 8,644.12

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Solution

The fourth proportional to 15,357.18, 21,194.96 and 8,644.12 is: 11,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,357.18 : 21,194.96 = 8,644.12 : x
  2. Step 2: Convert to fraction form
    15,357.18/21,194.96 = 8,644.12/x
  3. Step 3: Cross multiply
    15,357.18x = 21,194.96 × 8,644.12
  4. Step 4: Simplify right side
    15,357.18x = 183,211,681.43
  5. Step 5: Solve for x
    x = 183,211,681.43/15,357.18
  6. Step 6: Final answer
    x = 11,930.03

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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.