Home / 9,018.50-13,515.87-3,817.94

Finding the Fourth Proportional to 9,018.50, 13,515.87 and 3,817.94

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Solution

The fourth proportional to 9,018.50, 13,515.87 and 3,817.94 is: 5,721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.50 : 13,515.87 = 3,817.94 : x
  2. Step 2: Convert to fraction form
    9,018.50/13,515.87 = 3,817.94/x
  3. Step 3: Cross multiply
    9,018.50x = 13,515.87 × 3,817.94
  4. Step 4: Simplify right side
    9,018.50x = 51,602,780.71
  5. Step 5: Solve for x
    x = 51,602,780.71/9,018.50
  6. Step 6: Final answer
    x = 5,721.88

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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.