Home / 13,872.47-20,822.74-12,301.27

Finding the Fourth Proportional to 13,872.47, 20,822.74 and 12,301.27

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Solution

The fourth proportional to 13,872.47, 20,822.74 and 12,301.27 is: 18,464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.47 : 20,822.74 = 12,301.27 : x
  2. Step 2: Convert to fraction form
    13,872.47/20,822.74 = 12,301.27/x
  3. Step 3: Cross multiply
    13,872.47x = 20,822.74 × 12,301.27
  4. Step 4: Simplify right side
    13,872.47x = 256,146,064.07
  5. Step 5: Solve for x
    x = 256,146,064.07/13,872.47
  6. Step 6: Final answer
    x = 18,464.35

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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.