Home / 19,145.25-28,725.63-8,607.90

Finding the Fourth Proportional to 19,145.25, 28,725.63 and 8,607.90

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Solution

The fourth proportional to 19,145.25, 28,725.63 and 8,607.90 is: 12,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.25 : 28,725.63 = 8,607.90 : x
  2. Step 2: Convert to fraction form
    19,145.25/28,725.63 = 8,607.90/x
  3. Step 3: Cross multiply
    19,145.25x = 28,725.63 × 8,607.90
  4. Step 4: Simplify right side
    19,145.25x = 247,267,350.48
  5. Step 5: Solve for x
    x = 247,267,350.48/19,145.25
  6. Step 6: Final answer
    x = 12,915.34

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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.