Home / 10,333.57-15,491.70-4,790.90

Finding the Fourth Proportional to 10,333.57, 15,491.70 and 4,790.90

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Solution

The fourth proportional to 10,333.57, 15,491.70 and 4,790.90 is: 7,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,333.57 : 15,491.70 = 4,790.90 : x
  2. Step 2: Convert to fraction form
    10,333.57/15,491.70 = 4,790.90/x
  3. Step 3: Cross multiply
    10,333.57x = 15,491.70 × 4,790.90
  4. Step 4: Simplify right side
    10,333.57x = 74,219,108.07
  5. Step 5: Solve for x
    x = 74,219,108.07/10,333.57
  6. Step 6: Final answer
    x = 7,182.33

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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.