Home / 7,860.40-10,847.54-4,323.60

Finding the Fourth Proportional to 7,860.40, 10,847.54 and 4,323.60

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Solution

The fourth proportional to 7,860.40, 10,847.54 and 4,323.60 is: 5,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.40 : 10,847.54 = 4,323.60 : x
  2. Step 2: Convert to fraction form
    7,860.40/10,847.54 = 4,323.60/x
  3. Step 3: Cross multiply
    7,860.40x = 10,847.54 × 4,323.60
  4. Step 4: Simplify right side
    7,860.40x = 46,900,423.94
  5. Step 5: Solve for x
    x = 46,900,423.94/7,860.40
  6. Step 6: Final answer
    x = 5,966.67

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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.