Home / 9,768.16-13,485.84-6,416.83

Finding the Fourth Proportional to 9,768.16, 13,485.84 and 6,416.83

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Solution

The fourth proportional to 9,768.16, 13,485.84 and 6,416.83 is: 8,859.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,768.16 : 13,485.84 = 6,416.83 : x
  2. Step 2: Convert to fraction form
    9,768.16/13,485.84 = 6,416.83/x
  3. Step 3: Cross multiply
    9,768.16x = 13,485.84 × 6,416.83
  4. Step 4: Simplify right side
    9,768.16x = 86,536,342.69
  5. Step 5: Solve for x
    x = 86,536,342.69/9,768.16
  6. Step 6: Final answer
    x = 8,859.02

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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.