Home / 15,173.47-20,940.03-8,459.09

Finding the Fourth Proportional to 15,173.47, 20,940.03 and 8,459.09

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Solution

The fourth proportional to 15,173.47, 20,940.03 and 8,459.09 is: 11,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,173.47 : 20,940.03 = 8,459.09 : x
  2. Step 2: Convert to fraction form
    15,173.47/20,940.03 = 8,459.09/x
  3. Step 3: Cross multiply
    15,173.47x = 20,940.03 × 8,459.09
  4. Step 4: Simplify right side
    15,173.47x = 177,133,598.37
  5. Step 5: Solve for x
    x = 177,133,598.37/15,173.47
  6. Step 6: Final answer
    x = 11,673.90

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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.