Home / 9,285.48-13,929.50-3,131.24

Finding the Fourth Proportional to 9,285.48, 13,929.50 and 3,131.24

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Solution

The fourth proportional to 9,285.48, 13,929.50 and 3,131.24 is: 4,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.48 : 13,929.50 = 3,131.24 : x
  2. Step 2: Convert to fraction form
    9,285.48/13,929.50 = 3,131.24/x
  3. Step 3: Cross multiply
    9,285.48x = 13,929.50 × 3,131.24
  4. Step 4: Simplify right side
    9,285.48x = 43,616,607.58
  5. Step 5: Solve for x
    x = 43,616,607.58/9,285.48
  6. Step 6: Final answer
    x = 4,697.29

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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.