Home / 13,380.17-18,464.90-8,008.16

Finding the Fourth Proportional to 13,380.17, 18,464.90 and 8,008.16

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Solution

The fourth proportional to 13,380.17, 18,464.90 and 8,008.16 is: 11,051.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.17 : 18,464.90 = 8,008.16 : x
  2. Step 2: Convert to fraction form
    13,380.17/18,464.90 = 8,008.16/x
  3. Step 3: Cross multiply
    13,380.17x = 18,464.90 × 8,008.16
  4. Step 4: Simplify right side
    13,380.17x = 147,869,741.22
  5. Step 5: Solve for x
    x = 147,869,741.22/13,380.17
  6. Step 6: Final answer
    x = 11,051.41

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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.