Home / 9,190.51-12,687.23-5,412.48

Finding the Fourth Proportional to 9,190.51, 12,687.23 and 5,412.48

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Solution

The fourth proportional to 9,190.51, 12,687.23 and 5,412.48 is: 7,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.51 : 12,687.23 = 5,412.48 : x
  2. Step 2: Convert to fraction form
    9,190.51/12,687.23 = 5,412.48/x
  3. Step 3: Cross multiply
    9,190.51x = 12,687.23 × 5,412.48
  4. Step 4: Simplify right side
    9,190.51x = 68,669,378.63
  5. Step 5: Solve for x
    x = 68,669,378.63/9,190.51
  6. Step 6: Final answer
    x = 7,471.77

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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.