Home / 7,685.36-11,529.40-2,687.46

Finding the Fourth Proportional to 7,685.36, 11,529.40 and 2,687.46

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Solution

The fourth proportional to 7,685.36, 11,529.40 and 2,687.46 is: 4,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.36 : 11,529.40 = 2,687.46 : x
  2. Step 2: Convert to fraction form
    7,685.36/11,529.40 = 2,687.46/x
  3. Step 3: Cross multiply
    7,685.36x = 11,529.40 × 2,687.46
  4. Step 4: Simplify right side
    7,685.36x = 30,984,801.32
  5. Step 5: Solve for x
    x = 30,984,801.32/7,685.36
  6. Step 6: Final answer
    x = 4,031.67

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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.