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Finding the Fourth Proportional to 9,980.63, 14,970.53 and 2,960.36

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Solution

The fourth proportional to 9,980.63, 14,970.53 and 2,960.36 is: 4,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.63 : 14,970.53 = 2,960.36 : x
  2. Step 2: Convert to fraction form
    9,980.63/14,970.53 = 2,960.36/x
  3. Step 3: Cross multiply
    9,980.63x = 14,970.53 × 2,960.36
  4. Step 4: Simplify right side
    9,980.63x = 44,318,090.74
  5. Step 5: Solve for x
    x = 44,318,090.74/9,980.63
  6. Step 6: Final answer
    x = 4,440.41

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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.