Home / 15,492.02-21,379.12-8,418.44

Finding the Fourth Proportional to 15,492.02, 21,379.12 and 8,418.44

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Solution

The fourth proportional to 15,492.02, 21,379.12 and 8,418.44 is: 11,617.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,492.02 : 21,379.12 = 8,418.44 : x
  2. Step 2: Convert to fraction form
    15,492.02/21,379.12 = 8,418.44/x
  3. Step 3: Cross multiply
    15,492.02x = 21,379.12 × 8,418.44
  4. Step 4: Simplify right side
    15,492.02x = 179,978,871.37
  5. Step 5: Solve for x
    x = 179,978,871.37/15,492.02
  6. Step 6: Final answer
    x = 11,617.52

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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.