Home / 13,900.02-20,864.08-12,329.04

Finding the Fourth Proportional to 13,900.02, 20,864.08 and 12,329.04

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Solution

The fourth proportional to 13,900.02, 20,864.08 and 12,329.04 is: 18,506.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.02 : 20,864.08 = 12,329.04 : x
  2. Step 2: Convert to fraction form
    13,900.02/20,864.08 = 12,329.04/x
  3. Step 3: Cross multiply
    13,900.02x = 20,864.08 × 12,329.04
  4. Step 4: Simplify right side
    13,900.02x = 257,234,076.88
  5. Step 5: Solve for x
    x = 257,234,076.88/13,900.02
  6. Step 6: Final answer
    x = 18,506.02

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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.