Home / 16,489.08-22,748.40-9,772.20

Finding the Fourth Proportional to 16,489.08, 22,748.40 and 9,772.20

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Solution

The fourth proportional to 16,489.08, 22,748.40 and 9,772.20 is: 13,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.08 : 22,748.40 = 9,772.20 : x
  2. Step 2: Convert to fraction form
    16,489.08/22,748.40 = 9,772.20/x
  3. Step 3: Cross multiply
    16,489.08x = 22,748.40 × 9,772.20
  4. Step 4: Simplify right side
    16,489.08x = 222,301,914.48
  5. Step 5: Solve for x
    x = 222,301,914.48/16,489.08
  6. Step 6: Final answer
    x = 13,481.77

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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.