Home / 13,211.40-19,788.30-11,752.20

Finding the Fourth Proportional to 13,211.40, 19,788.30 and 11,752.20

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Solution

The fourth proportional to 13,211.40, 19,788.30 and 11,752.20 is: 17,602.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.40 : 19,788.30 = 11,752.20 : x
  2. Step 2: Convert to fraction form
    13,211.40/19,788.30 = 11,752.20/x
  3. Step 3: Cross multiply
    13,211.40x = 19,788.30 × 11,752.20
  4. Step 4: Simplify right side
    13,211.40x = 232,556,059.26
  5. Step 5: Solve for x
    x = 232,556,059.26/13,211.40
  6. Step 6: Final answer
    x = 17,602.68

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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.