Home / 13,156.20-19,739.70-4,840.20

Finding the Fourth Proportional to 13,156.20, 19,739.70 and 4,840.20

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Solution

The fourth proportional to 13,156.20, 19,739.70 and 4,840.20 is: 7,262.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.20 : 19,739.70 = 4,840.20 : x
  2. Step 2: Convert to fraction form
    13,156.20/19,739.70 = 4,840.20/x
  3. Step 3: Cross multiply
    13,156.20x = 19,739.70 × 4,840.20
  4. Step 4: Simplify right side
    13,156.20x = 95,544,095.94
  5. Step 5: Solve for x
    x = 95,544,095.94/13,156.20
  6. Step 6: Final answer
    x = 7,262.29

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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.