Home / 15,385.62-23,085.66-7,986.06

Finding the Fourth Proportional to 15,385.62, 23,085.66 and 7,986.06

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Solution

The fourth proportional to 15,385.62, 23,085.66 and 7,986.06 is: 11,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.62 : 23,085.66 = 7,986.06 : x
  2. Step 2: Convert to fraction form
    15,385.62/23,085.66 = 7,986.06/x
  3. Step 3: Cross multiply
    15,385.62x = 23,085.66 × 7,986.06
  4. Step 4: Simplify right side
    15,385.62x = 184,363,465.90
  5. Step 5: Solve for x
    x = 184,363,465.90/15,385.62
  6. Step 6: Final answer
    x = 11,982.84

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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.