Home / 12,276.28-18,417.26-4,485.16

Finding the Fourth Proportional to 12,276.28, 18,417.26 and 4,485.16

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Solution

The fourth proportional to 12,276.28, 18,417.26 and 4,485.16 is: 6,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.28 : 18,417.26 = 4,485.16 : x
  2. Step 2: Convert to fraction form
    12,276.28/18,417.26 = 4,485.16/x
  3. Step 3: Cross multiply
    12,276.28x = 18,417.26 × 4,485.16
  4. Step 4: Simplify right side
    12,276.28x = 82,604,357.86
  5. Step 5: Solve for x
    x = 82,604,357.86/12,276.28
  6. Step 6: Final answer
    x = 6,728.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.