Home / 11,783.55-17,688.13-4,768.39

Finding the Fourth Proportional to 11,783.55, 17,688.13 and 4,768.39

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Solution

The fourth proportional to 11,783.55, 17,688.13 and 4,768.39 is: 7,157.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,783.55 : 17,688.13 = 4,768.39 : x
  2. Step 2: Convert to fraction form
    11,783.55/17,688.13 = 4,768.39/x
  3. Step 3: Cross multiply
    11,783.55x = 17,688.13 × 4,768.39
  4. Step 4: Simplify right side
    11,783.55x = 84,343,912.40
  5. Step 5: Solve for x
    x = 84,343,912.40/11,783.55
  6. Step 6: Final answer
    x = 7,157.77

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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.