Home / 15,548.40-21,455.82-9,259.56

Finding the Fourth Proportional to 15,548.40, 21,455.82 and 9,259.56

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Solution

The fourth proportional to 15,548.40, 21,455.82 and 9,259.56 is: 12,777.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.40 : 21,455.82 = 9,259.56 : x
  2. Step 2: Convert to fraction form
    15,548.40/21,455.82 = 9,259.56/x
  3. Step 3: Cross multiply
    15,548.40x = 21,455.82 × 9,259.56
  4. Step 4: Simplify right side
    15,548.40x = 198,671,452.64
  5. Step 5: Solve for x
    x = 198,671,452.64/15,548.40
  6. Step 6: Final answer
    x = 12,777.61

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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.