Home / 11,113.72-16,670.58-4,872.32

Finding the Fourth Proportional to 11,113.72, 16,670.58 and 4,872.32

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Solution

The fourth proportional to 11,113.72, 16,670.58 and 4,872.32 is: 7,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.72 : 16,670.58 = 4,872.32 : x
  2. Step 2: Convert to fraction form
    11,113.72/16,670.58 = 4,872.32/x
  3. Step 3: Cross multiply
    11,113.72x = 16,670.58 × 4,872.32
  4. Step 4: Simplify right side
    11,113.72x = 81,224,400.35
  5. Step 5: Solve for x
    x = 81,224,400.35/11,113.72
  6. Step 6: Final answer
    x = 7,308.48

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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.