Home / 14,162.16-21,202.18-12,661.32

Finding the Fourth Proportional to 14,162.16, 21,202.18 and 12,661.32

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Solution

The fourth proportional to 14,162.16, 21,202.18 and 12,661.32 is: 18,955.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,162.16 : 21,202.18 = 12,661.32 : x
  2. Step 2: Convert to fraction form
    14,162.16/21,202.18 = 12,661.32/x
  3. Step 3: Cross multiply
    14,162.16x = 21,202.18 × 12,661.32
  4. Step 4: Simplify right side
    14,162.16x = 268,447,585.68
  5. Step 5: Solve for x
    x = 268,447,585.68/14,162.16
  6. Step 6: Final answer
    x = 18,955.27

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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.