Home / 12,319.37-16,994.79-8,068.53

Finding the Fourth Proportional to 12,319.37, 16,994.79 and 8,068.53

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Solution

The fourth proportional to 12,319.37, 16,994.79 and 8,068.53 is: 11,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.37 : 16,994.79 = 8,068.53 : x
  2. Step 2: Convert to fraction form
    12,319.37/16,994.79 = 8,068.53/x
  3. Step 3: Cross multiply
    12,319.37x = 16,994.79 × 8,068.53
  4. Step 4: Simplify right side
    12,319.37x = 137,122,972.96
  5. Step 5: Solve for x
    x = 137,122,972.96/12,319.37
  6. Step 6: Final answer
    x = 11,130.69

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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.