Home / 14,181.55-21,268.54-8,615.63

Finding the Fourth Proportional to 14,181.55, 21,268.54 and 8,615.63

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Solution

The fourth proportional to 14,181.55, 21,268.54 and 8,615.63 is: 12,921.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.55 : 21,268.54 = 8,615.63 : x
  2. Step 2: Convert to fraction form
    14,181.55/21,268.54 = 8,615.63/x
  3. Step 3: Cross multiply
    14,181.55x = 21,268.54 × 8,615.63
  4. Step 4: Simplify right side
    14,181.55x = 183,241,935.22
  5. Step 5: Solve for x
    x = 183,241,935.22/14,181.55
  6. Step 6: Final answer
    x = 12,921.15

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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.