Home / 12,259-16,917.78-6,670.36

Finding the Fourth Proportional to 12,259, 16,917.78 and 6,670.36

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Solution

The fourth proportional to 12,259, 16,917.78 and 6,670.36 is: 9,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259 : 16,917.78 = 6,670.36 : x
  2. Step 2: Convert to fraction form
    12,259/16,917.78 = 6,670.36/x
  3. Step 3: Cross multiply
    12,259x = 16,917.78 × 6,670.36
  4. Step 4: Simplify right side
    12,259x = 112,847,683.00
  5. Step 5: Solve for x
    x = 112,847,683.00/12,259
  6. Step 6: Final answer
    x = 9,205.29

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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.