Home / 10,299.42-14,199.46-8,181.98

Finding the Fourth Proportional to 10,299.42, 14,199.46 and 8,181.98

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Solution

The fourth proportional to 10,299.42, 14,199.46 and 8,181.98 is: 11,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.42 : 14,199.46 = 8,181.98 : x
  2. Step 2: Convert to fraction form
    10,299.42/14,199.46 = 8,181.98/x
  3. Step 3: Cross multiply
    10,299.42x = 14,199.46 × 8,181.98
  4. Step 4: Simplify right side
    10,299.42x = 116,179,712.77
  5. Step 5: Solve for x
    x = 116,179,712.77/10,299.42
  6. Step 6: Final answer
    x = 11,280.21

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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.