Home / 11,440.64-15,783.44-6,960.80

Finding the Fourth Proportional to 11,440.64, 15,783.44 and 6,960.80

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Solution

The fourth proportional to 11,440.64, 15,783.44 and 6,960.80 is: 9,603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.64 : 15,783.44 = 6,960.80 : x
  2. Step 2: Convert to fraction form
    11,440.64/15,783.44 = 6,960.80/x
  3. Step 3: Cross multiply
    11,440.64x = 15,783.44 × 6,960.80
  4. Step 4: Simplify right side
    11,440.64x = 109,865,369.15
  5. Step 5: Solve for x
    x = 109,865,369.15/11,440.64
  6. Step 6: Final answer
    x = 9,603.08

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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.