Home / 8,274.84-12,415.62-5,316.60

Finding the Fourth Proportional to 8,274.84, 12,415.62 and 5,316.60

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Solution

The fourth proportional to 8,274.84, 12,415.62 and 5,316.60 is: 7,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274.84 : 12,415.62 = 5,316.60 : x
  2. Step 2: Convert to fraction form
    8,274.84/12,415.62 = 5,316.60/x
  3. Step 3: Cross multiply
    8,274.84x = 12,415.62 × 5,316.60
  4. Step 4: Simplify right side
    8,274.84x = 66,008,885.29
  5. Step 5: Solve for x
    x = 66,008,885.29/8,274.84
  6. Step 6: Final answer
    x = 7,977.06

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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.