Home / 10,907.22-15,051.80-6,431.16

Finding the Fourth Proportional to 10,907.22, 15,051.80 and 6,431.16

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Solution

The fourth proportional to 10,907.22, 15,051.80 and 6,431.16 is: 8,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.22 : 15,051.80 = 6,431.16 : x
  2. Step 2: Convert to fraction form
    10,907.22/15,051.80 = 6,431.16/x
  3. Step 3: Cross multiply
    10,907.22x = 15,051.80 × 6,431.16
  4. Step 4: Simplify right side
    10,907.22x = 96,800,534.09
  5. Step 5: Solve for x
    x = 96,800,534.09/10,907.22
  6. Step 6: Final answer
    x = 8,874.90

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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.