Home / 12,825.60-19,243.80-6,986.40

Finding the Fourth Proportional to 12,825.60, 19,243.80 and 6,986.40

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Solution

The fourth proportional to 12,825.60, 19,243.80 and 6,986.40 is: 10,482.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825.60 : 19,243.80 = 6,986.40 : x
  2. Step 2: Convert to fraction form
    12,825.60/19,243.80 = 6,986.40/x
  3. Step 3: Cross multiply
    12,825.60x = 19,243.80 × 6,986.40
  4. Step 4: Simplify right side
    12,825.60x = 134,444,884.32
  5. Step 5: Solve for x
    x = 134,444,884.32/12,825.60
  6. Step 6: Final answer
    x = 10,482.54

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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.