Home / 12,903.40-19,370.70-7,360.60

Finding the Fourth Proportional to 12,903.40, 19,370.70 and 7,360.60

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Solution

The fourth proportional to 12,903.40, 19,370.70 and 7,360.60 is: 11,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.40 : 19,370.70 = 7,360.60 : x
  2. Step 2: Convert to fraction form
    12,903.40/19,370.70 = 7,360.60/x
  3. Step 3: Cross multiply
    12,903.40x = 19,370.70 × 7,360.60
  4. Step 4: Simplify right side
    12,903.40x = 142,579,974.42
  5. Step 5: Solve for x
    x = 142,579,974.42/12,903.40
  6. Step 6: Final answer
    x = 11,049.80

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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.