Home / 13,697.37-18,902.36-7,409.75

Finding the Fourth Proportional to 13,697.37, 18,902.36 and 7,409.75

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Solution

The fourth proportional to 13,697.37, 18,902.36 and 7,409.75 is: 10,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.37 : 18,902.36 = 7,409.75 : x
  2. Step 2: Convert to fraction form
    13,697.37/18,902.36 = 7,409.75/x
  3. Step 3: Cross multiply
    13,697.37x = 18,902.36 × 7,409.75
  4. Step 4: Simplify right side
    13,697.37x = 140,061,686.02
  5. Step 5: Solve for x
    x = 140,061,686.02/13,697.37
  6. Step 6: Final answer
    x = 10,225.44

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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.