Home / 12,355.68-17,053-11,945.60

Finding the Fourth Proportional to 12,355.68, 17,053 and 11,945.60

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Solution

The fourth proportional to 12,355.68, 17,053 and 11,945.60 is: 16,487.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.68 : 17,053 = 11,945.60 : x
  2. Step 2: Convert to fraction form
    12,355.68/17,053 = 11,945.60/x
  3. Step 3: Cross multiply
    12,355.68x = 17,053 × 11,945.60
  4. Step 4: Simplify right side
    12,355.68x = 203,708,316.80
  5. Step 5: Solve for x
    x = 203,708,316.80/12,355.68
  6. Step 6: Final answer
    x = 16,487.02

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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.