Home / 12,435.60-17,160.80-6,770.22

Finding the Fourth Proportional to 12,435.60, 17,160.80 and 6,770.22

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Solution

The fourth proportional to 12,435.60, 17,160.80 and 6,770.22 is: 9,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.60 : 17,160.80 = 6,770.22 : x
  2. Step 2: Convert to fraction form
    12,435.60/17,160.80 = 6,770.22/x
  3. Step 3: Cross multiply
    12,435.60x = 17,160.80 × 6,770.22
  4. Step 4: Simplify right side
    12,435.60x = 116,182,483.42
  5. Step 5: Solve for x
    x = 116,182,483.42/12,435.60
  6. Step 6: Final answer
    x = 9,342.73

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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.