Home / 8,720.37-13,071.24-6,342.75

Finding the Fourth Proportional to 8,720.37, 13,071.24 and 6,342.75

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Solution

The fourth proportional to 8,720.37, 13,071.24 and 6,342.75 is: 9,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.37 : 13,071.24 = 6,342.75 : x
  2. Step 2: Convert to fraction form
    8,720.37/13,071.24 = 6,342.75/x
  3. Step 3: Cross multiply
    8,720.37x = 13,071.24 × 6,342.75
  4. Step 4: Simplify right side
    8,720.37x = 82,907,607.51
  5. Step 5: Solve for x
    x = 82,907,607.51/8,720.37
  6. Step 6: Final answer
    x = 9,507.35

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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.