Home / 13,975.32-20,966.63-4,114.28

Finding the Fourth Proportional to 13,975.32, 20,966.63 and 4,114.28

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Solution

The fourth proportional to 13,975.32, 20,966.63 and 4,114.28 is: 6,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.32 : 20,966.63 = 4,114.28 : x
  2. Step 2: Convert to fraction form
    13,975.32/20,966.63 = 4,114.28/x
  3. Step 3: Cross multiply
    13,975.32x = 20,966.63 × 4,114.28
  4. Step 4: Simplify right side
    13,975.32x = 86,262,586.48
  5. Step 5: Solve for x
    x = 86,262,586.48/13,975.32
  6. Step 6: Final answer
    x = 6,172.49

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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.