Home / 14,628.24-20,186.88-8,340.54

Finding the Fourth Proportional to 14,628.24, 20,186.88 and 8,340.54

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Solution

The fourth proportional to 14,628.24, 20,186.88 and 8,340.54 is: 11,509.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,628.24 : 20,186.88 = 8,340.54 : x
  2. Step 2: Convert to fraction form
    14,628.24/20,186.88 = 8,340.54/x
  3. Step 3: Cross multiply
    14,628.24x = 20,186.88 × 8,340.54
  4. Step 4: Simplify right side
    14,628.24x = 168,369,480.12
  5. Step 5: Solve for x
    x = 168,369,480.12/14,628.24
  6. Step 6: Final answer
    x = 11,509.89

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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.