Home / 12,427.04-18,640.56-11,666.72

Finding the Fourth Proportional to 12,427.04, 18,640.56 and 11,666.72

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Solution

The fourth proportional to 12,427.04, 18,640.56 and 11,666.72 is: 17,500.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.04 : 18,640.56 = 11,666.72 : x
  2. Step 2: Convert to fraction form
    12,427.04/18,640.56 = 11,666.72/x
  3. Step 3: Cross multiply
    12,427.04x = 18,640.56 × 11,666.72
  4. Step 4: Simplify right side
    12,427.04x = 217,474,194.16
  5. Step 5: Solve for x
    x = 217,474,194.16/12,427.04
  6. Step 6: Final answer
    x = 17,500.08

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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.