Home / 12,781.02-19,180.28-4,461.03

Finding the Fourth Proportional to 12,781.02, 19,180.28 and 4,461.03

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Solution

The fourth proportional to 12,781.02, 19,180.28 and 4,461.03 is: 6,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.02 : 19,180.28 = 4,461.03 : x
  2. Step 2: Convert to fraction form
    12,781.02/19,180.28 = 4,461.03/x
  3. Step 3: Cross multiply
    12,781.02x = 19,180.28 × 4,461.03
  4. Step 4: Simplify right side
    12,781.02x = 85,563,804.49
  5. Step 5: Solve for x
    x = 85,563,804.49/12,781.02
  6. Step 6: Final answer
    x = 6,694.60

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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.