Home / 18,835.48-25,997.74-12,869.56

Finding the Fourth Proportional to 18,835.48, 25,997.74 and 12,869.56

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Solution

The fourth proportional to 18,835.48, 25,997.74 and 12,869.56 is: 17,763.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.48 : 25,997.74 = 12,869.56 : x
  2. Step 2: Convert to fraction form
    18,835.48/25,997.74 = 12,869.56/x
  3. Step 3: Cross multiply
    18,835.48x = 25,997.74 × 12,869.56
  4. Step 4: Simplify right side
    18,835.48x = 334,579,474.79
  5. Step 5: Solve for x
    x = 334,579,474.79/18,835.48
  6. Step 6: Final answer
    x = 17,763.26

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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.