Home / 13,321.16-19,985.28-4,556.96

Finding the Fourth Proportional to 13,321.16, 19,985.28 and 4,556.96

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Solution

The fourth proportional to 13,321.16, 19,985.28 and 4,556.96 is: 6,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.16 : 19,985.28 = 4,556.96 : x
  2. Step 2: Convert to fraction form
    13,321.16/19,985.28 = 4,556.96/x
  3. Step 3: Cross multiply
    13,321.16x = 19,985.28 × 4,556.96
  4. Step 4: Simplify right side
    13,321.16x = 91,072,121.55
  5. Step 5: Solve for x
    x = 91,072,121.55/13,321.16
  6. Step 6: Final answer
    x = 6,836.65

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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.