Home / 13,261.40-19,863.30-11,802.20

Finding the Fourth Proportional to 13,261.40, 19,863.30 and 11,802.20

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Solution

The fourth proportional to 13,261.40, 19,863.30 and 11,802.20 is: 17,677.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.40 : 19,863.30 = 11,802.20 : x
  2. Step 2: Convert to fraction form
    13,261.40/19,863.30 = 11,802.20/x
  3. Step 3: Cross multiply
    13,261.40x = 19,863.30 × 11,802.20
  4. Step 4: Simplify right side
    13,261.40x = 234,430,639.26
  5. Step 5: Solve for x
    x = 234,430,639.26/13,261.40
  6. Step 6: Final answer
    x = 17,677.67

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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.