Home / 9,194.10-12,688.01-5,215.31

Finding the Fourth Proportional to 9,194.10, 12,688.01 and 5,215.31

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Solution

The fourth proportional to 9,194.10, 12,688.01 and 5,215.31 is: 7,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,194.10 : 12,688.01 = 5,215.31 : x
  2. Step 2: Convert to fraction form
    9,194.10/12,688.01 = 5,215.31/x
  3. Step 3: Cross multiply
    9,194.10x = 12,688.01 × 5,215.31
  4. Step 4: Simplify right side
    9,194.10x = 66,171,905.43
  5. Step 5: Solve for x
    x = 66,171,905.43/9,194.10
  6. Step 6: Final answer
    x = 7,197.21

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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.