Home / 12,683.70-19,009.35-9,216.90

Finding the Fourth Proportional to 12,683.70, 19,009.35 and 9,216.90

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Solution

The fourth proportional to 12,683.70, 19,009.35 and 9,216.90 is: 13,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.70 : 19,009.35 = 9,216.90 : x
  2. Step 2: Convert to fraction form
    12,683.70/19,009.35 = 9,216.90/x
  3. Step 3: Cross multiply
    12,683.70x = 19,009.35 × 9,216.90
  4. Step 4: Simplify right side
    12,683.70x = 175,207,278.02
  5. Step 5: Solve for x
    x = 175,207,278.02/12,683.70
  6. Step 6: Final answer
    x = 13,813.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.