Home / 11,821.02-16,319.67-7,847.56

Finding the Fourth Proportional to 11,821.02, 16,319.67 and 7,847.56

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Solution

The fourth proportional to 11,821.02, 16,319.67 and 7,847.56 is: 10,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.02 : 16,319.67 = 7,847.56 : x
  2. Step 2: Convert to fraction form
    11,821.02/16,319.67 = 7,847.56/x
  3. Step 3: Cross multiply
    11,821.02x = 16,319.67 × 7,847.56
  4. Step 4: Simplify right side
    11,821.02x = 128,069,580.48
  5. Step 5: Solve for x
    x = 128,069,580.48/11,821.02
  6. Step 6: Final answer
    x = 10,834.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.