Home / 13,421.02-18,517.66-8,044.30

Finding the Fourth Proportional to 13,421.02, 18,517.66 and 8,044.30

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Solution

The fourth proportional to 13,421.02, 18,517.66 and 8,044.30 is: 11,099.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421.02 : 18,517.66 = 8,044.30 : x
  2. Step 2: Convert to fraction form
    13,421.02/18,517.66 = 8,044.30/x
  3. Step 3: Cross multiply
    13,421.02x = 18,517.66 × 8,044.30
  4. Step 4: Simplify right side
    13,421.02x = 148,961,612.34
  5. Step 5: Solve for x
    x = 148,961,612.34/13,421.02
  6. Step 6: Final answer
    x = 11,099.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.