Home / 10,400.62-14,353.84-5,685.60

Finding the Fourth Proportional to 10,400.62, 14,353.84 and 5,685.60

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Solution

The fourth proportional to 10,400.62, 14,353.84 and 5,685.60 is: 7,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.62 : 14,353.84 = 5,685.60 : x
  2. Step 2: Convert to fraction form
    10,400.62/14,353.84 = 5,685.60/x
  3. Step 3: Cross multiply
    10,400.62x = 14,353.84 × 5,685.60
  4. Step 4: Simplify right side
    10,400.62x = 81,610,192.70
  5. Step 5: Solve for x
    x = 81,610,192.70/10,400.62
  6. Step 6: Final answer
    x = 7,846.67

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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.