Home / 12,966.85-19,419.09-7,403.33

Finding the Fourth Proportional to 12,966.85, 19,419.09 and 7,403.33

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Solution

The fourth proportional to 12,966.85, 19,419.09 and 7,403.33 is: 11,087.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.85 : 19,419.09 = 7,403.33 : x
  2. Step 2: Convert to fraction form
    12,966.85/19,419.09 = 7,403.33/x
  3. Step 3: Cross multiply
    12,966.85x = 19,419.09 × 7,403.33
  4. Step 4: Simplify right side
    12,966.85x = 143,765,931.57
  5. Step 5: Solve for x
    x = 143,765,931.57/12,966.85
  6. Step 6: Final answer
    x = 11,087.19

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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.