Home / 9,997.20-14,989.50-5,314.32

Finding the Fourth Proportional to 9,997.20, 14,989.50 and 5,314.32

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Solution

The fourth proportional to 9,997.20, 14,989.50 and 5,314.32 is: 7,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.20 : 14,989.50 = 5,314.32 : x
  2. Step 2: Convert to fraction form
    9,997.20/14,989.50 = 5,314.32/x
  3. Step 3: Cross multiply
    9,997.20x = 14,989.50 × 5,314.32
  4. Step 4: Simplify right side
    9,997.20x = 79,658,999.64
  5. Step 5: Solve for x
    x = 79,658,999.64/9,997.20
  6. Step 6: Final answer
    x = 7,968.13

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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.