Home / 10,984.48-15,183.50-10,112.58

Finding the Fourth Proportional to 10,984.48, 15,183.50 and 10,112.58

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Solution

The fourth proportional to 10,984.48, 15,183.50 and 10,112.58 is: 13,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,984.48 : 15,183.50 = 10,112.58 : x
  2. Step 2: Convert to fraction form
    10,984.48/15,183.50 = 10,112.58/x
  3. Step 3: Cross multiply
    10,984.48x = 15,183.50 × 10,112.58
  4. Step 4: Simplify right side
    10,984.48x = 153,544,358.43
  5. Step 5: Solve for x
    x = 153,544,358.43/10,984.48
  6. Step 6: Final answer
    x = 13,978.30

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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.