Home / 15,629.70-21,568.95-8,556.06

Finding the Fourth Proportional to 15,629.70, 21,568.95 and 8,556.06

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Solution

The fourth proportional to 15,629.70, 21,568.95 and 8,556.06 is: 11,807.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.70 : 21,568.95 = 8,556.06 : x
  2. Step 2: Convert to fraction form
    15,629.70/21,568.95 = 8,556.06/x
  3. Step 3: Cross multiply
    15,629.70x = 21,568.95 × 8,556.06
  4. Step 4: Simplify right side
    15,629.70x = 184,545,230.34
  5. Step 5: Solve for x
    x = 184,545,230.34/15,629.70
  6. Step 6: Final answer
    x = 11,807.34

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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.