Home / 13,984.07-20,970.63-5,214.20

Finding the Fourth Proportional to 13,984.07, 20,970.63 and 5,214.20

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Solution

The fourth proportional to 13,984.07, 20,970.63 and 5,214.20 is: 7,819.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.07 : 20,970.63 = 5,214.20 : x
  2. Step 2: Convert to fraction form
    13,984.07/20,970.63 = 5,214.20/x
  3. Step 3: Cross multiply
    13,984.07x = 20,970.63 × 5,214.20
  4. Step 4: Simplify right side
    13,984.07x = 109,344,954.09
  5. Step 5: Solve for x
    x = 109,344,954.09/13,984.07
  6. Step 6: Final answer
    x = 7,819.25

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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.