Home / 16,485.09-22,749.39-8,931.61

Finding the Fourth Proportional to 16,485.09, 22,749.39 and 8,931.61

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Solution

The fourth proportional to 16,485.09, 22,749.39 and 8,931.61 is: 12,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,485.09 : 22,749.39 = 8,931.61 : x
  2. Step 2: Convert to fraction form
    16,485.09/22,749.39 = 8,931.61/x
  3. Step 3: Cross multiply
    16,485.09x = 22,749.39 × 8,931.61
  4. Step 4: Simplify right side
    16,485.09x = 203,188,679.22
  5. Step 5: Solve for x
    x = 203,188,679.22/16,485.09
  6. Step 6: Final answer
    x = 12,325.60

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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.