Home / 14,181.76-21,235.47-9,999.12

Finding the Fourth Proportional to 14,181.76, 21,235.47 and 9,999.12

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Solution

The fourth proportional to 14,181.76, 21,235.47 and 9,999.12 is: 14,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.76 : 21,235.47 = 9,999.12 : x
  2. Step 2: Convert to fraction form
    14,181.76/21,235.47 = 9,999.12/x
  3. Step 3: Cross multiply
    14,181.76x = 21,235.47 × 9,999.12
  4. Step 4: Simplify right side
    14,181.76x = 212,336,012.79
  5. Step 5: Solve for x
    x = 212,336,012.79/14,181.76
  6. Step 6: Final answer
    x = 14,972.47

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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.