Home / 12,162.36-16,783.93-6,858.89

Finding the Fourth Proportional to 12,162.36, 16,783.93 and 6,858.89

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Solution

The fourth proportional to 12,162.36, 16,783.93 and 6,858.89 is: 9,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.36 : 16,783.93 = 6,858.89 : x
  2. Step 2: Convert to fraction form
    12,162.36/16,783.93 = 6,858.89/x
  3. Step 3: Cross multiply
    12,162.36x = 16,783.93 × 6,858.89
  4. Step 4: Simplify right side
    12,162.36x = 115,119,129.64
  5. Step 5: Solve for x
    x = 115,119,129.64/12,162.36
  6. Step 6: Final answer
    x = 9,465.20

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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.