Home / 11,107.40-16,661.10-10,718.60

Finding the Fourth Proportional to 11,107.40, 16,661.10 and 10,718.60

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Solution

The fourth proportional to 11,107.40, 16,661.10 and 10,718.60 is: 16,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.40 : 16,661.10 = 10,718.60 : x
  2. Step 2: Convert to fraction form
    11,107.40/16,661.10 = 10,718.60/x
  3. Step 3: Cross multiply
    11,107.40x = 16,661.10 × 10,718.60
  4. Step 4: Simplify right side
    11,107.40x = 178,583,666.46
  5. Step 5: Solve for x
    x = 178,583,666.46/11,107.40
  6. Step 6: Final answer
    x = 16,077.90

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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.