Home / 14,052.64-21,081.36-5,288.80

Finding the Fourth Proportional to 14,052.64, 21,081.36 and 5,288.80

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Solution

The fourth proportional to 14,052.64, 21,081.36 and 5,288.80 is: 7,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.64 : 21,081.36 = 5,288.80 : x
  2. Step 2: Convert to fraction form
    14,052.64/21,081.36 = 5,288.80/x
  3. Step 3: Cross multiply
    14,052.64x = 21,081.36 × 5,288.80
  4. Step 4: Simplify right side
    14,052.64x = 111,495,096.77
  5. Step 5: Solve for x
    x = 111,495,096.77/14,052.64
  6. Step 6: Final answer
    x = 7,934.10

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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.