Home / 15,383.74-23,068.32-7,980.80

Finding the Fourth Proportional to 15,383.74, 23,068.32 and 7,980.80

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Solution

The fourth proportional to 15,383.74, 23,068.32 and 7,980.80 is: 11,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.74 : 23,068.32 = 7,980.80 : x
  2. Step 2: Convert to fraction form
    15,383.74/23,068.32 = 7,980.80/x
  3. Step 3: Cross multiply
    15,383.74x = 23,068.32 × 7,980.80
  4. Step 4: Simplify right side
    15,383.74x = 184,103,648.26
  5. Step 5: Solve for x
    x = 184,103,648.26/15,383.74
  6. Step 6: Final answer
    x = 11,967.42

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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.