Home / 15,837.39-21,855.60-8,764.29

Finding the Fourth Proportional to 15,837.39, 21,855.60 and 8,764.29

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Solution

The fourth proportional to 15,837.39, 21,855.60 and 8,764.29 is: 12,094.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,837.39 : 21,855.60 = 8,764.29 : x
  2. Step 2: Convert to fraction form
    15,837.39/21,855.60 = 8,764.29/x
  3. Step 3: Cross multiply
    15,837.39x = 21,855.60 × 8,764.29
  4. Step 4: Simplify right side
    15,837.39x = 191,548,816.52
  5. Step 5: Solve for x
    x = 191,548,816.52/15,837.39
  6. Step 6: Final answer
    x = 12,094.72

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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.