Home / 8,720.21-12,036.53-5,927.33

Finding the Fourth Proportional to 8,720.21, 12,036.53 and 5,927.33

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Solution

The fourth proportional to 8,720.21, 12,036.53 and 5,927.33 is: 8,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.21 : 12,036.53 = 5,927.33 : x
  2. Step 2: Convert to fraction form
    8,720.21/12,036.53 = 5,927.33/x
  3. Step 3: Cross multiply
    8,720.21x = 12,036.53 × 5,927.33
  4. Step 4: Simplify right side
    8,720.21x = 71,344,485.36
  5. Step 5: Solve for x
    x = 71,344,485.36/8,720.21
  6. Step 6: Final answer
    x = 8,181.51

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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.