Home / 9,864.12-14,855.26-8,313.78

Finding the Fourth Proportional to 9,864.12, 14,855.26 and 8,313.78

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Solution

The fourth proportional to 9,864.12, 14,855.26 and 8,313.78 is: 12,520.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.12 : 14,855.26 = 8,313.78 : x
  2. Step 2: Convert to fraction form
    9,864.12/14,855.26 = 8,313.78/x
  3. Step 3: Cross multiply
    9,864.12x = 14,855.26 × 8,313.78
  4. Step 4: Simplify right side
    9,864.12x = 123,503,363.48
  5. Step 5: Solve for x
    x = 123,503,363.48/9,864.12
  6. Step 6: Final answer
    x = 12,520.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.