Home / 12,189.73-16,823.50-7,015.50

Finding the Fourth Proportional to 12,189.73, 16,823.50 and 7,015.50

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Solution

The fourth proportional to 12,189.73, 16,823.50 and 7,015.50 is: 9,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189.73 : 16,823.50 = 7,015.50 : x
  2. Step 2: Convert to fraction form
    12,189.73/16,823.50 = 7,015.50/x
  3. Step 3: Cross multiply
    12,189.73x = 16,823.50 × 7,015.50
  4. Step 4: Simplify right side
    12,189.73x = 118,025,264.25
  5. Step 5: Solve for x
    x = 118,025,264.25/12,189.73
  6. Step 6: Final answer
    x = 9,682.35

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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.