Home / 19,390.89-29,079.15-6,907.60

Finding the Fourth Proportional to 19,390.89, 29,079.15 and 6,907.60

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Solution

The fourth proportional to 19,390.89, 29,079.15 and 6,907.60 is: 10,358.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.89 : 29,079.15 = 6,907.60 : x
  2. Step 2: Convert to fraction form
    19,390.89/29,079.15 = 6,907.60/x
  3. Step 3: Cross multiply
    19,390.89x = 29,079.15 × 6,907.60
  4. Step 4: Simplify right side
    19,390.89x = 200,866,983.42
  5. Step 5: Solve for x
    x = 200,866,983.42/19,390.89
  6. Step 6: Final answer
    x = 10,358.83

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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.