Home / 12,356.15-17,051.49-6,690.89

Finding the Fourth Proportional to 12,356.15, 17,051.49 and 6,690.89

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Solution

The fourth proportional to 12,356.15, 17,051.49 and 6,690.89 is: 9,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.15 : 17,051.49 = 6,690.89 : x
  2. Step 2: Convert to fraction form
    12,356.15/17,051.49 = 6,690.89/x
  3. Step 3: Cross multiply
    12,356.15x = 17,051.49 × 6,690.89
  4. Step 4: Simplify right side
    12,356.15x = 114,089,558.67
  5. Step 5: Solve for x
    x = 114,089,558.67/12,356.15
  6. Step 6: Final answer
    x = 9,233.43

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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.