Home / 11,678.68-16,116.60-7,486.94

Finding the Fourth Proportional to 11,678.68, 16,116.60 and 7,486.94

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Solution

The fourth proportional to 11,678.68, 16,116.60 and 7,486.94 is: 10,331.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.68 : 16,116.60 = 7,486.94 : x
  2. Step 2: Convert to fraction form
    11,678.68/16,116.60 = 7,486.94/x
  3. Step 3: Cross multiply
    11,678.68x = 16,116.60 × 7,486.94
  4. Step 4: Simplify right side
    11,678.68x = 120,664,017.20
  5. Step 5: Solve for x
    x = 120,664,017.20/11,678.68
  6. Step 6: Final answer
    x = 10,331.99

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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.