Home / 11,113.75-16,670.63-2,905.75

Finding the Fourth Proportional to 11,113.75, 16,670.63 and 2,905.75

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Solution

The fourth proportional to 11,113.75, 16,670.63 and 2,905.75 is: 4,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.75 : 16,670.63 = 2,905.75 : x
  2. Step 2: Convert to fraction form
    11,113.75/16,670.63 = 2,905.75/x
  3. Step 3: Cross multiply
    11,113.75x = 16,670.63 × 2,905.75
  4. Step 4: Simplify right side
    11,113.75x = 48,440,683.12
  5. Step 5: Solve for x
    x = 48,440,683.12/11,113.75
  6. Step 6: Final answer
    x = 4,358.63

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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.