Home / 13,312.44-19,867.40-11,836.20

Finding the Fourth Proportional to 13,312.44, 19,867.40 and 11,836.20

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Solution

The fourth proportional to 13,312.44, 19,867.40 and 11,836.20 is: 17,664.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.44 : 19,867.40 = 11,836.20 : x
  2. Step 2: Convert to fraction form
    13,312.44/19,867.40 = 11,836.20/x
  3. Step 3: Cross multiply
    13,312.44x = 19,867.40 × 11,836.20
  4. Step 4: Simplify right side
    13,312.44x = 235,154,519.88
  5. Step 5: Solve for x
    x = 235,154,519.88/13,312.44
  6. Step 6: Final answer
    x = 17,664.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.