Home / 13,167.60-19,649.48-11,765.70

Finding the Fourth Proportional to 13,167.60, 19,649.48 and 11,765.70

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Solution

The fourth proportional to 13,167.60, 19,649.48 and 11,765.70 is: 17,557.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.60 : 19,649.48 = 11,765.70 : x
  2. Step 2: Convert to fraction form
    13,167.60/19,649.48 = 11,765.70/x
  3. Step 3: Cross multiply
    13,167.60x = 19,649.48 × 11,765.70
  4. Step 4: Simplify right side
    13,167.60x = 231,189,886.84
  5. Step 5: Solve for x
    x = 231,189,886.84/13,167.60
  6. Step 6: Final answer
    x = 17,557.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.