Home / 8,392.06-12,563.78-6,320.78

Finding the Fourth Proportional to 8,392.06, 12,563.78 and 6,320.78

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Solution

The fourth proportional to 8,392.06, 12,563.78 and 6,320.78 is: 9,462.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.06 : 12,563.78 = 6,320.78 : x
  2. Step 2: Convert to fraction form
    8,392.06/12,563.78 = 6,320.78/x
  3. Step 3: Cross multiply
    8,392.06x = 12,563.78 × 6,320.78
  4. Step 4: Simplify right side
    8,392.06x = 79,412,966.04
  5. Step 5: Solve for x
    x = 79,412,966.04/8,392.06
  6. Step 6: Final answer
    x = 9,462.87

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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.