Home / 13,945.60-19,239.63-9,168.12

Finding the Fourth Proportional to 13,945.60, 19,239.63 and 9,168.12

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Solution

The fourth proportional to 13,945.60, 19,239.63 and 9,168.12 is: 12,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.60 : 19,239.63 = 9,168.12 : x
  2. Step 2: Convert to fraction form
    13,945.60/19,239.63 = 9,168.12/x
  3. Step 3: Cross multiply
    13,945.60x = 19,239.63 × 9,168.12
  4. Step 4: Simplify right side
    13,945.60x = 176,391,236.60
  5. Step 5: Solve for x
    x = 176,391,236.60/13,945.60
  6. Step 6: Final answer
    x = 12,648.52

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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.