Home / 15,554.42-21,464.96-8,480.69

Finding the Fourth Proportional to 15,554.42, 21,464.96 and 8,480.69

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Solution

The fourth proportional to 15,554.42, 21,464.96 and 8,480.69 is: 11,703.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.42 : 21,464.96 = 8,480.69 : x
  2. Step 2: Convert to fraction form
    15,554.42/21,464.96 = 8,480.69/x
  3. Step 3: Cross multiply
    15,554.42x = 21,464.96 × 8,480.69
  4. Step 4: Simplify right side
    15,554.42x = 182,037,671.62
  5. Step 5: Solve for x
    x = 182,037,671.62/15,554.42
  6. Step 6: Final answer
    x = 11,703.28

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Double scale
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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.