Home / 15,756.53-21,744.18-8,682.93

Finding the Fourth Proportional to 15,756.53, 21,744.18 and 8,682.93

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Solution

The fourth proportional to 15,756.53, 21,744.18 and 8,682.93 is: 11,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.53 : 21,744.18 = 8,682.93 : x
  2. Step 2: Convert to fraction form
    15,756.53/21,744.18 = 8,682.93/x
  3. Step 3: Cross multiply
    15,756.53x = 21,744.18 × 8,682.93
  4. Step 4: Simplify right side
    15,756.53x = 188,803,192.85
  5. Step 5: Solve for x
    x = 188,803,192.85/15,756.53
  6. Step 6: Final answer
    x = 11,982.54

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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.