Home / 13,431.51-20,147.25-4,666.43

Finding the Fourth Proportional to 13,431.51, 20,147.25 and 4,666.43

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Solution

The fourth proportional to 13,431.51, 20,147.25 and 4,666.43 is: 6,999.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.51 : 20,147.25 = 4,666.43 : x
  2. Step 2: Convert to fraction form
    13,431.51/20,147.25 = 4,666.43/x
  3. Step 3: Cross multiply
    13,431.51x = 20,147.25 × 4,666.43
  4. Step 4: Simplify right side
    13,431.51x = 94,015,631.08
  5. Step 5: Solve for x
    x = 94,015,631.08/13,431.51
  6. Step 6: Final answer
    x = 6,999.63

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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.