Home / 12,739.72-19,102.30-5,337.94

Finding the Fourth Proportional to 12,739.72, 19,102.30 and 5,337.94

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Solution

The fourth proportional to 12,739.72, 19,102.30 and 5,337.94 is: 8,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.72 : 19,102.30 = 5,337.94 : x
  2. Step 2: Convert to fraction form
    12,739.72/19,102.30 = 5,337.94/x
  3. Step 3: Cross multiply
    12,739.72x = 19,102.30 × 5,337.94
  4. Step 4: Simplify right side
    12,739.72x = 101,966,931.26
  5. Step 5: Solve for x
    x = 101,966,931.26/12,739.72
  6. Step 6: Final answer
    x = 8,003.86

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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.