Home / 12,965.40-19,440.90-5,568.60

Finding the Fourth Proportional to 12,965.40, 19,440.90 and 5,568.60

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Solution

The fourth proportional to 12,965.40, 19,440.90 and 5,568.60 is: 8,349.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.40 : 19,440.90 = 5,568.60 : x
  2. Step 2: Convert to fraction form
    12,965.40/19,440.90 = 5,568.60/x
  3. Step 3: Cross multiply
    12,965.40x = 19,440.90 × 5,568.60
  4. Step 4: Simplify right side
    12,965.40x = 108,258,595.74
  5. Step 5: Solve for x
    x = 108,258,595.74/12,965.40
  6. Step 6: Final answer
    x = 8,349.81

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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.