Home / 13,200.28-19,802.61-4,880.32

Finding the Fourth Proportional to 13,200.28, 19,802.61 and 4,880.32

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Solution

The fourth proportional to 13,200.28, 19,802.61 and 4,880.32 is: 7,321.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.28 : 19,802.61 = 4,880.32 : x
  2. Step 2: Convert to fraction form
    13,200.28/19,802.61 = 4,880.32/x
  3. Step 3: Cross multiply
    13,200.28x = 19,802.61 × 4,880.32
  4. Step 4: Simplify right side
    13,200.28x = 96,643,073.64
  5. Step 5: Solve for x
    x = 96,643,073.64/13,200.28
  6. Step 6: Final answer
    x = 7,321.29

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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.