Home / 13,819.78-19,071.28-7,532.16

Finding the Fourth Proportional to 13,819.78, 19,071.28 and 7,532.16

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Solution

The fourth proportional to 13,819.78, 19,071.28 and 7,532.16 is: 10,394.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.78 : 19,071.28 = 7,532.16 : x
  2. Step 2: Convert to fraction form
    13,819.78/19,071.28 = 7,532.16/x
  3. Step 3: Cross multiply
    13,819.78x = 19,071.28 × 7,532.16
  4. Step 4: Simplify right side
    13,819.78x = 143,647,870.26
  5. Step 5: Solve for x
    x = 143,647,870.26/13,819.78
  6. Step 6: Final answer
    x = 10,394.37

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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.