Home / 12,431.15-18,646.72-10,235.26

Finding the Fourth Proportional to 12,431.15, 18,646.72 and 10,235.26

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Solution

The fourth proportional to 12,431.15, 18,646.72 and 10,235.26 is: 15,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.15 : 18,646.72 = 10,235.26 : x
  2. Step 2: Convert to fraction form
    12,431.15/18,646.72 = 10,235.26/x
  3. Step 3: Cross multiply
    12,431.15x = 18,646.72 × 10,235.26
  4. Step 4: Simplify right side
    12,431.15x = 190,854,094.47
  5. Step 5: Solve for x
    x = 190,854,094.47/12,431.15
  6. Step 6: Final answer
    x = 15,352.89

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.