Home / 14,090.31-21,126.08-8,455.29

Finding the Fourth Proportional to 14,090.31, 21,126.08 and 8,455.29

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Solution

The fourth proportional to 14,090.31, 21,126.08 and 8,455.29 is: 12,677.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.31 : 21,126.08 = 8,455.29 : x
  2. Step 2: Convert to fraction form
    14,090.31/21,126.08 = 8,455.29/x
  3. Step 3: Cross multiply
    14,090.31x = 21,126.08 × 8,455.29
  4. Step 4: Simplify right side
    14,090.31x = 178,627,122.39
  5. Step 5: Solve for x
    x = 178,627,122.39/14,090.31
  6. Step 6: Final answer
    x = 12,677.31

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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.