Home / 15,022.83-20,735.70-8,736.42

Finding the Fourth Proportional to 15,022.83, 20,735.70 and 8,736.42

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Solution

The fourth proportional to 15,022.83, 20,735.70 and 8,736.42 is: 12,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.83 : 20,735.70 = 8,736.42 : x
  2. Step 2: Convert to fraction form
    15,022.83/20,735.70 = 8,736.42/x
  3. Step 3: Cross multiply
    15,022.83x = 20,735.70 × 8,736.42
  4. Step 4: Simplify right side
    15,022.83x = 181,155,784.19
  5. Step 5: Solve for x
    x = 181,155,784.19/15,022.83
  6. Step 6: Final answer
    x = 12,058.70

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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.