Home / 12,543.02-18,816.46-4,222.38

Finding the Fourth Proportional to 12,543.02, 18,816.46 and 4,222.38

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Solution

The fourth proportional to 12,543.02, 18,816.46 and 4,222.38 is: 6,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.02 : 18,816.46 = 4,222.38 : x
  2. Step 2: Convert to fraction form
    12,543.02/18,816.46 = 4,222.38/x
  3. Step 3: Cross multiply
    12,543.02x = 18,816.46 × 4,222.38
  4. Step 4: Simplify right side
    12,543.02x = 79,450,244.37
  5. Step 5: Solve for x
    x = 79,450,244.37/12,543.02
  6. Step 6: Final answer
    x = 6,334.22

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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.