Home / 12,115.44-18,146.52-10,011.60

Finding the Fourth Proportional to 12,115.44, 18,146.52 and 10,011.60

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Solution

The fourth proportional to 12,115.44, 18,146.52 and 10,011.60 is: 14,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.44 : 18,146.52 = 10,011.60 : x
  2. Step 2: Convert to fraction form
    12,115.44/18,146.52 = 10,011.60/x
  3. Step 3: Cross multiply
    12,115.44x = 18,146.52 × 10,011.60
  4. Step 4: Simplify right side
    12,115.44x = 181,675,699.63
  5. Step 5: Solve for x
    x = 181,675,699.63/12,115.44
  6. Step 6: Final answer
    x = 14,995.39

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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.