Home / 15,629.02-21,556.76-9,958.18

Finding the Fourth Proportional to 15,629.02, 21,556.76 and 9,958.18

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Solution

The fourth proportional to 15,629.02, 21,556.76 and 9,958.18 is: 13,735.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.02 : 21,556.76 = 9,958.18 : x
  2. Step 2: Convert to fraction form
    15,629.02/21,556.76 = 9,958.18/x
  3. Step 3: Cross multiply
    15,629.02x = 21,556.76 × 9,958.18
  4. Step 4: Simplify right side
    15,629.02x = 214,666,096.30
  5. Step 5: Solve for x
    x = 214,666,096.30/15,629.02
  6. Step 6: Final answer
    x = 13,735.10

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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.