Home / 14,245.94-21,345.46-4,880.78

Finding the Fourth Proportional to 14,245.94, 21,345.46 and 4,880.78

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Solution

The fourth proportional to 14,245.94, 21,345.46 and 4,880.78 is: 7,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,245.94 : 21,345.46 = 4,880.78 : x
  2. Step 2: Convert to fraction form
    14,245.94/21,345.46 = 4,880.78/x
  3. Step 3: Cross multiply
    14,245.94x = 21,345.46 × 4,880.78
  4. Step 4: Simplify right side
    14,245.94x = 104,182,494.26
  5. Step 5: Solve for x
    x = 104,182,494.26/14,245.94
  6. Step 6: Final answer
    x = 7,313.14

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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.