Home / 12,444.64-18,666.96-3,680.24

Finding the Fourth Proportional to 12,444.64, 18,666.96 and 3,680.24

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Solution

The fourth proportional to 12,444.64, 18,666.96 and 3,680.24 is: 5,520.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.64 : 18,666.96 = 3,680.24 : x
  2. Step 2: Convert to fraction form
    12,444.64/18,666.96 = 3,680.24/x
  3. Step 3: Cross multiply
    12,444.64x = 18,666.96 × 3,680.24
  4. Step 4: Simplify right side
    12,444.64x = 68,698,892.87
  5. Step 5: Solve for x
    x = 68,698,892.87/12,444.64
  6. Step 6: Final answer
    x = 5,520.36

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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.