Home / 12,002.55-16,563.84-6,698.40

Finding the Fourth Proportional to 12,002.55, 16,563.84 and 6,698.40

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Solution

The fourth proportional to 12,002.55, 16,563.84 and 6,698.40 is: 9,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,002.55 : 16,563.84 = 6,698.40 : x
  2. Step 2: Convert to fraction form
    12,002.55/16,563.84 = 6,698.40/x
  3. Step 3: Cross multiply
    12,002.55x = 16,563.84 × 6,698.40
  4. Step 4: Simplify right side
    12,002.55x = 110,951,225.86
  5. Step 5: Solve for x
    x = 110,951,225.86/12,002.55
  6. Step 6: Final answer
    x = 9,243.97

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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.