Home / 15,004.15-20,708.61-8,635.03

Finding the Fourth Proportional to 15,004.15, 20,708.61 and 8,635.03

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Solution

The fourth proportional to 15,004.15, 20,708.61 and 8,635.03 is: 11,918.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.15 : 20,708.61 = 8,635.03 : x
  2. Step 2: Convert to fraction form
    15,004.15/20,708.61 = 8,635.03/x
  3. Step 3: Cross multiply
    15,004.15x = 20,708.61 × 8,635.03
  4. Step 4: Simplify right side
    15,004.15x = 178,819,468.61
  5. Step 5: Solve for x
    x = 178,819,468.61/15,004.15
  6. Step 6: Final answer
    x = 11,918.00

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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.