Home / 12,157.57-18,236.36-2,923.57

Finding the Fourth Proportional to 12,157.57, 18,236.36 and 2,923.57

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Solution

The fourth proportional to 12,157.57, 18,236.36 and 2,923.57 is: 4,385.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.57 : 18,236.36 = 2,923.57 : x
  2. Step 2: Convert to fraction form
    12,157.57/18,236.36 = 2,923.57/x
  3. Step 3: Cross multiply
    12,157.57x = 18,236.36 × 2,923.57
  4. Step 4: Simplify right side
    12,157.57x = 53,315,275.01
  5. Step 5: Solve for x
    x = 53,315,275.01/12,157.57
  6. Step 6: Final answer
    x = 4,385.36

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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.