Home / 12,228.66-16,875.36-8,698.05

Finding the Fourth Proportional to 12,228.66, 16,875.36 and 8,698.05

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Solution

The fourth proportional to 12,228.66, 16,875.36 and 8,698.05 is: 12,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.66 : 16,875.36 = 8,698.05 : x
  2. Step 2: Convert to fraction form
    12,228.66/16,875.36 = 8,698.05/x
  3. Step 3: Cross multiply
    12,228.66x = 16,875.36 × 8,698.05
  4. Step 4: Simplify right side
    12,228.66x = 146,782,725.05
  5. Step 5: Solve for x
    x = 146,782,725.05/12,228.66
  6. Step 6: Final answer
    x = 12,003.17

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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.