Home / 16,485.34-22,749.80-8,931.74

Finding the Fourth Proportional to 16,485.34, 22,749.80 and 8,931.74

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Solution

The fourth proportional to 16,485.34, 22,749.80 and 8,931.74 is: 12,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,485.34 : 22,749.80 = 8,931.74 : x
  2. Step 2: Convert to fraction form
    16,485.34/22,749.80 = 8,931.74/x
  3. Step 3: Cross multiply
    16,485.34x = 22,749.80 × 8,931.74
  4. Step 4: Simplify right side
    16,485.34x = 203,195,140.24
  5. Step 5: Solve for x
    x = 203,195,140.24/16,485.34
  6. Step 6: Final answer
    x = 12,325.81

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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.