Home / 12,157.16-18,228.42-4,752.79

Finding the Fourth Proportional to 12,157.16, 18,228.42 and 4,752.79

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Solution

The fourth proportional to 12,157.16, 18,228.42 and 4,752.79 is: 7,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.16 : 18,228.42 = 4,752.79 : x
  2. Step 2: Convert to fraction form
    12,157.16/18,228.42 = 4,752.79/x
  3. Step 3: Cross multiply
    12,157.16x = 18,228.42 × 4,752.79
  4. Step 4: Simplify right side
    12,157.16x = 86,635,806.72
  5. Step 5: Solve for x
    x = 86,635,806.72/12,157.16
  6. Step 6: Final answer
    x = 7,126.32

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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.