Home / 10,112.08-13,968.30-9,168.94

Finding the Fourth Proportional to 10,112.08, 13,968.30 and 9,168.94

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Solution

The fourth proportional to 10,112.08, 13,968.30 and 9,168.94 is: 12,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.08 : 13,968.30 = 9,168.94 : x
  2. Step 2: Convert to fraction form
    10,112.08/13,968.30 = 9,168.94/x
  3. Step 3: Cross multiply
    10,112.08x = 13,968.30 × 9,168.94
  4. Step 4: Simplify right side
    10,112.08x = 128,074,504.60
  5. Step 5: Solve for x
    x = 128,074,504.60/10,112.08
  6. Step 6: Final answer
    x = 12,665.50

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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.