Home / 12,112.15-16,715.01-6,807.34

Finding the Fourth Proportional to 12,112.15, 16,715.01 and 6,807.34

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Solution

The fourth proportional to 12,112.15, 16,715.01 and 6,807.34 is: 9,394.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.15 : 16,715.01 = 6,807.34 : x
  2. Step 2: Convert to fraction form
    12,112.15/16,715.01 = 6,807.34/x
  3. Step 3: Cross multiply
    12,112.15x = 16,715.01 × 6,807.34
  4. Step 4: Simplify right side
    12,112.15x = 113,784,756.17
  5. Step 5: Solve for x
    x = 113,784,756.17/12,112.15
  6. Step 6: Final answer
    x = 9,394.27

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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.