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Finding the Fourth Proportional to 15,157.81, 22,739.82 and 6,392.71

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Solution

The fourth proportional to 15,157.81, 22,739.82 and 6,392.71 is: 9,590.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,157.81 : 22,739.82 = 6,392.71 : x
  2. Step 2: Convert to fraction form
    15,157.81/22,739.82 = 6,392.71/x
  3. Step 3: Cross multiply
    15,157.81x = 22,739.82 × 6,392.71
  4. Step 4: Simplify right side
    15,157.81x = 145,369,074.71
  5. Step 5: Solve for x
    x = 145,369,074.71/15,157.81
  6. Step 6: Final answer
    x = 9,590.37

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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.