Home / 19,397.80-26,765.74-11,438.92

Finding the Fourth Proportional to 19,397.80, 26,765.74 and 11,438.92

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Solution

The fourth proportional to 19,397.80, 26,765.74 and 11,438.92 is: 15,783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,397.80 : 26,765.74 = 11,438.92 : x
  2. Step 2: Convert to fraction form
    19,397.80/26,765.74 = 11,438.92/x
  3. Step 3: Cross multiply
    19,397.80x = 26,765.74 × 11,438.92
  4. Step 4: Simplify right side
    19,397.80x = 306,171,158.60
  5. Step 5: Solve for x
    x = 306,171,158.60/19,397.80
  6. Step 6: Final answer
    x = 15,783.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.