Home / 12,683.94-19,029.93-5,289.18

Finding the Fourth Proportional to 12,683.94, 19,029.93 and 5,289.18

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Solution

The fourth proportional to 12,683.94, 19,029.93 and 5,289.18 is: 7,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.94 : 19,029.93 = 5,289.18 : x
  2. Step 2: Convert to fraction form
    12,683.94/19,029.93 = 5,289.18/x
  3. Step 3: Cross multiply
    12,683.94x = 19,029.93 × 5,289.18
  4. Step 4: Simplify right side
    12,683.94x = 100,652,725.16
  5. Step 5: Solve for x
    x = 100,652,725.16/12,683.94
  6. Step 6: Final answer
    x = 7,935.45

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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.