Home / 15,110.35-20,855.27-9,655.93

Finding the Fourth Proportional to 15,110.35, 20,855.27 and 9,655.93

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Solution

The fourth proportional to 15,110.35, 20,855.27 and 9,655.93 is: 13,327.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.35 : 20,855.27 = 9,655.93 : x
  2. Step 2: Convert to fraction form
    15,110.35/20,855.27 = 9,655.93/x
  3. Step 3: Cross multiply
    15,110.35x = 20,855.27 × 9,655.93
  4. Step 4: Simplify right side
    15,110.35x = 201,376,978.97
  5. Step 5: Solve for x
    x = 201,376,978.97/15,110.35
  6. Step 6: Final answer
    x = 13,327.09

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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.