Home / 10,389.78-15,584.46-4,840.02

Finding the Fourth Proportional to 10,389.78, 15,584.46 and 4,840.02

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Solution

The fourth proportional to 10,389.78, 15,584.46 and 4,840.02 is: 7,259.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.78 : 15,584.46 = 4,840.02 : x
  2. Step 2: Convert to fraction form
    10,389.78/15,584.46 = 4,840.02/x
  3. Step 3: Cross multiply
    10,389.78x = 15,584.46 × 4,840.02
  4. Step 4: Simplify right side
    10,389.78x = 75,429,098.09
  5. Step 5: Solve for x
    x = 75,429,098.09/10,389.78
  6. Step 6: Final answer
    x = 7,259.93

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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.