Home / 13,670.57-18,862.85-8,005.02

Finding the Fourth Proportional to 13,670.57, 18,862.85 and 8,005.02

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Solution

The fourth proportional to 13,670.57, 18,862.85 and 8,005.02 is: 11,045.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.57 : 18,862.85 = 8,005.02 : x
  2. Step 2: Convert to fraction form
    13,670.57/18,862.85 = 8,005.02/x
  3. Step 3: Cross multiply
    13,670.57x = 18,862.85 × 8,005.02
  4. Step 4: Simplify right side
    13,670.57x = 150,997,451.48
  5. Step 5: Solve for x
    x = 150,997,451.48/13,670.57
  6. Step 6: Final answer
    x = 11,045.44

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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.