Home / 13,969.04-20,959.14-5,211.32

Finding the Fourth Proportional to 13,969.04, 20,959.14 and 5,211.32

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Solution

The fourth proportional to 13,969.04, 20,959.14 and 5,211.32 is: 7,819.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.04 : 20,959.14 = 5,211.32 : x
  2. Step 2: Convert to fraction form
    13,969.04/20,959.14 = 5,211.32/x
  3. Step 3: Cross multiply
    13,969.04x = 20,959.14 × 5,211.32
  4. Step 4: Simplify right side
    13,969.04x = 109,224,785.46
  5. Step 5: Solve for x
    x = 109,224,785.46/13,969.04
  6. Step 6: Final answer
    x = 7,819.06

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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.