Home / 10,552.90-15,830.70-3,889.84

Finding the Fourth Proportional to 10,552.90, 15,830.70 and 3,889.84

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Solution

The fourth proportional to 10,552.90, 15,830.70 and 3,889.84 is: 5,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,552.90 : 15,830.70 = 3,889.84 : x
  2. Step 2: Convert to fraction form
    10,552.90/15,830.70 = 3,889.84/x
  3. Step 3: Cross multiply
    10,552.90x = 15,830.70 × 3,889.84
  4. Step 4: Simplify right side
    10,552.90x = 61,578,890.09
  5. Step 5: Solve for x
    x = 61,578,890.09/10,552.90
  6. Step 6: Final answer
    x = 5,835.26

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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.