Home / 19,412.07-29,110.90-6,928.75

Finding the Fourth Proportional to 19,412.07, 29,110.90 and 6,928.75

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Solution

The fourth proportional to 19,412.07, 29,110.90 and 6,928.75 is: 10,390.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.07 : 29,110.90 = 6,928.75 : x
  2. Step 2: Convert to fraction form
    19,412.07/29,110.90 = 6,928.75/x
  3. Step 3: Cross multiply
    19,412.07x = 29,110.90 × 6,928.75
  4. Step 4: Simplify right side
    19,412.07x = 201,702,148.38
  5. Step 5: Solve for x
    x = 201,702,148.38/19,412.07
  6. Step 6: Final answer
    x = 10,390.55

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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.