Home / 12,125.18-16,735.50-7,412.60

Finding the Fourth Proportional to 12,125.18, 16,735.50 and 7,412.60

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Solution

The fourth proportional to 12,125.18, 16,735.50 and 7,412.60 is: 10,231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.18 : 16,735.50 = 7,412.60 : x
  2. Step 2: Convert to fraction form
    12,125.18/16,735.50 = 7,412.60/x
  3. Step 3: Cross multiply
    12,125.18x = 16,735.50 × 7,412.60
  4. Step 4: Simplify right side
    12,125.18x = 124,053,567.30
  5. Step 5: Solve for x
    x = 124,053,567.30/12,125.18
  6. Step 6: Final answer
    x = 10,231.07

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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.