Home / 14,493.16-19,999.60-8,118.64

Finding the Fourth Proportional to 14,493.16, 19,999.60 and 8,118.64

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Solution

The fourth proportional to 14,493.16, 19,999.60 and 8,118.64 is: 11,203.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,493.16 : 19,999.60 = 8,118.64 : x
  2. Step 2: Convert to fraction form
    14,493.16/19,999.60 = 8,118.64/x
  3. Step 3: Cross multiply
    14,493.16x = 19,999.60 × 8,118.64
  4. Step 4: Simplify right side
    14,493.16x = 162,369,552.54
  5. Step 5: Solve for x
    x = 162,369,552.54/14,493.16
  6. Step 6: Final answer
    x = 11,203.18

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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.