Home / 15,697.60-23,546.40-13,105.60

Finding the Fourth Proportional to 15,697.60, 23,546.40 and 13,105.60

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Solution

The fourth proportional to 15,697.60, 23,546.40 and 13,105.60 is: 19,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697.60 : 23,546.40 = 13,105.60 : x
  2. Step 2: Convert to fraction form
    15,697.60/23,546.40 = 13,105.60/x
  3. Step 3: Cross multiply
    15,697.60x = 23,546.40 × 13,105.60
  4. Step 4: Simplify right side
    15,697.60x = 308,589,699.84
  5. Step 5: Solve for x
    x = 308,589,699.84/15,697.60
  6. Step 6: Final answer
    x = 19,658.40

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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.