Home / 12,558.42-17,327.16-7,520.58

Finding the Fourth Proportional to 12,558.42, 17,327.16 and 7,520.58

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Solution

The fourth proportional to 12,558.42, 17,327.16 and 7,520.58 is: 10,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.42 : 17,327.16 = 7,520.58 : x
  2. Step 2: Convert to fraction form
    12,558.42/17,327.16 = 7,520.58/x
  3. Step 3: Cross multiply
    12,558.42x = 17,327.16 × 7,520.58
  4. Step 4: Simplify right side
    12,558.42x = 130,310,292.95
  5. Step 5: Solve for x
    x = 130,310,292.95/12,558.42
  6. Step 6: Final answer
    x = 10,376.33

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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.