Home / 18,669.64-28,004.46-10,872.98

Finding the Fourth Proportional to 18,669.64, 28,004.46 and 10,872.98

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Solution

The fourth proportional to 18,669.64, 28,004.46 and 10,872.98 is: 16,309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.64 : 28,004.46 = 10,872.98 : x
  2. Step 2: Convert to fraction form
    18,669.64/28,004.46 = 10,872.98/x
  3. Step 3: Cross multiply
    18,669.64x = 28,004.46 × 10,872.98
  4. Step 4: Simplify right side
    18,669.64x = 304,492,045.82
  5. Step 5: Solve for x
    x = 304,492,045.82/18,669.64
  6. Step 6: Final answer
    x = 16,309.48

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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.