Home / 12,430.57-17,145.45-8,180.27

Finding the Fourth Proportional to 12,430.57, 17,145.45 and 8,180.27

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Solution

The fourth proportional to 12,430.57, 17,145.45 and 8,180.27 is: 11,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.57 : 17,145.45 = 8,180.27 : x
  2. Step 2: Convert to fraction form
    12,430.57/17,145.45 = 8,180.27/x
  3. Step 3: Cross multiply
    12,430.57x = 17,145.45 × 8,180.27
  4. Step 4: Simplify right side
    12,430.57x = 140,254,453.14
  5. Step 5: Solve for x
    x = 140,254,453.14/12,430.57
  6. Step 6: Final answer
    x = 11,283.03

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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.