Home / 8,507-11,739.90-5,150.42

Finding the Fourth Proportional to 8,507, 11,739.90 and 5,150.42

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Solution

The fourth proportional to 8,507, 11,739.90 and 5,150.42 is: 7,107.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507 : 11,739.90 = 5,150.42 : x
  2. Step 2: Convert to fraction form
    8,507/11,739.90 = 5,150.42/x
  3. Step 3: Cross multiply
    8,507x = 11,739.90 × 5,150.42
  4. Step 4: Simplify right side
    8,507x = 60,465,415.76
  5. Step 5: Solve for x
    x = 60,465,415.76/8,507
  6. Step 6: Final answer
    x = 7,107.72

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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.