Home / 12,253.55-18,365.72-5,665.64

Finding the Fourth Proportional to 12,253.55, 18,365.72 and 5,665.64

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Solution

The fourth proportional to 12,253.55, 18,365.72 and 5,665.64 is: 8,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.55 : 18,365.72 = 5,665.64 : x
  2. Step 2: Convert to fraction form
    12,253.55/18,365.72 = 5,665.64/x
  3. Step 3: Cross multiply
    12,253.55x = 18,365.72 × 5,665.64
  4. Step 4: Simplify right side
    12,253.55x = 104,053,437.70
  5. Step 5: Solve for x
    x = 104,053,437.70/12,253.55
  6. Step 6: Final answer
    x = 8,491.70

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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.