Home / 12,655.22-18,962.67-11,560.82

Finding the Fourth Proportional to 12,655.22, 18,962.67 and 11,560.82

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Solution

The fourth proportional to 12,655.22, 18,962.67 and 11,560.82 is: 17,322.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655.22 : 18,962.67 = 11,560.82 : x
  2. Step 2: Convert to fraction form
    12,655.22/18,962.67 = 11,560.82/x
  3. Step 3: Cross multiply
    12,655.22x = 18,962.67 × 11,560.82
  4. Step 4: Simplify right side
    12,655.22x = 219,224,014.59
  5. Step 5: Solve for x
    x = 219,224,014.59/12,655.22
  6. Step 6: Final answer
    x = 17,322.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.