Home / 10,555.62-15,835.05-3,628.50

Finding the Fourth Proportional to 10,555.62, 15,835.05 and 3,628.50

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Solution

The fourth proportional to 10,555.62, 15,835.05 and 3,628.50 is: 5,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.62 : 15,835.05 = 3,628.50 : x
  2. Step 2: Convert to fraction form
    10,555.62/15,835.05 = 3,628.50/x
  3. Step 3: Cross multiply
    10,555.62x = 15,835.05 × 3,628.50
  4. Step 4: Simplify right side
    10,555.62x = 57,457,478.93
  5. Step 5: Solve for x
    x = 57,457,478.93/10,555.62
  6. Step 6: Final answer
    x = 5,443.31

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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.