Home / 15,533.60-21,439.32-9,249.44

Finding the Fourth Proportional to 15,533.60, 21,439.32 and 9,249.44

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Solution

The fourth proportional to 15,533.60, 21,439.32 and 9,249.44 is: 12,765.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.60 : 21,439.32 = 9,249.44 : x
  2. Step 2: Convert to fraction form
    15,533.60/21,439.32 = 9,249.44/x
  3. Step 3: Cross multiply
    15,533.60x = 21,439.32 × 9,249.44
  4. Step 4: Simplify right side
    15,533.60x = 198,301,703.98
  5. Step 5: Solve for x
    x = 198,301,703.98/15,533.60
  6. Step 6: Final answer
    x = 12,765.98

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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.