Home / 12,449.57-17,129.48-10,765.58

Finding the Fourth Proportional to 12,449.57, 17,129.48 and 10,765.58

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Solution

The fourth proportional to 12,449.57, 17,129.48 and 10,765.58 is: 14,812.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.57 : 17,129.48 = 10,765.58 : x
  2. Step 2: Convert to fraction form
    12,449.57/17,129.48 = 10,765.58/x
  3. Step 3: Cross multiply
    12,449.57x = 17,129.48 × 10,765.58
  4. Step 4: Simplify right side
    12,449.57x = 184,408,647.82
  5. Step 5: Solve for x
    x = 184,408,647.82/12,449.57
  6. Step 6: Final answer
    x = 14,812.46

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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.