Home / 12,576.37-18,873.69-10,140.61

Finding the Fourth Proportional to 12,576.37, 18,873.69 and 10,140.61

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Solution

The fourth proportional to 12,576.37, 18,873.69 and 10,140.61 is: 15,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.37 : 18,873.69 = 10,140.61 : x
  2. Step 2: Convert to fraction form
    12,576.37/18,873.69 = 10,140.61/x
  3. Step 3: Cross multiply
    12,576.37x = 18,873.69 × 10,140.61
  4. Step 4: Simplify right side
    12,576.37x = 191,390,729.55
  5. Step 5: Solve for x
    x = 191,390,729.55/12,576.37
  6. Step 6: Final answer
    x = 15,218.28

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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.