Home / 11,820.48-16,319.04-7,847.04

Finding the Fourth Proportional to 11,820.48, 16,319.04 and 7,847.04

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Solution

The fourth proportional to 11,820.48, 16,319.04 and 7,847.04 is: 10,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.48 : 16,319.04 = 7,847.04 : x
  2. Step 2: Convert to fraction form
    11,820.48/16,319.04 = 7,847.04/x
  3. Step 3: Cross multiply
    11,820.48x = 16,319.04 × 7,847.04
  4. Step 4: Simplify right side
    11,820.48x = 128,056,159.64
  5. Step 5: Solve for x
    x = 128,056,159.64/11,820.48
  6. Step 6: Final answer
    x = 10,833.41

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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.