Home / 14,071.68-21,090.24-8,516.16

Finding the Fourth Proportional to 14,071.68, 21,090.24 and 8,516.16

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Solution

The fourth proportional to 14,071.68, 21,090.24 and 8,516.16 is: 12,763.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,071.68 : 21,090.24 = 8,516.16 : x
  2. Step 2: Convert to fraction form
    14,071.68/21,090.24 = 8,516.16/x
  3. Step 3: Cross multiply
    14,071.68x = 21,090.24 × 8,516.16
  4. Step 4: Simplify right side
    14,071.68x = 179,607,858.28
  5. Step 5: Solve for x
    x = 179,607,858.28/14,071.68
  6. Step 6: Final answer
    x = 12,763.78

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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.