Home / 11,856.90-17,783.56-4,459.64

Finding the Fourth Proportional to 11,856.90, 17,783.56 and 4,459.64

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Solution

The fourth proportional to 11,856.90, 17,783.56 and 4,459.64 is: 6,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.90 : 17,783.56 = 4,459.64 : x
  2. Step 2: Convert to fraction form
    11,856.90/17,783.56 = 4,459.64/x
  3. Step 3: Cross multiply
    11,856.90x = 17,783.56 × 4,459.64
  4. Step 4: Simplify right side
    11,856.90x = 79,308,192.18
  5. Step 5: Solve for x
    x = 79,308,192.18/11,856.90
  6. Step 6: Final answer
    x = 6,688.78

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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.