Home / 12,821.02-19,229.10-4,055.20

Finding the Fourth Proportional to 12,821.02, 19,229.10 and 4,055.20

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Solution

The fourth proportional to 12,821.02, 19,229.10 and 4,055.20 is: 6,082.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.02 : 19,229.10 = 4,055.20 : x
  2. Step 2: Convert to fraction form
    12,821.02/19,229.10 = 4,055.20/x
  3. Step 3: Cross multiply
    12,821.02x = 19,229.10 × 4,055.20
  4. Step 4: Simplify right side
    12,821.02x = 77,977,846.32
  5. Step 5: Solve for x
    x = 77,977,846.32/12,821.02
  6. Step 6: Final answer
    x = 6,082.03

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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.