Home / 7,847.80-11,779.60-4,567.30

Finding the Fourth Proportional to 7,847.80, 11,779.60 and 4,567.30

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Solution

The fourth proportional to 7,847.80, 11,779.60 and 4,567.30 is: 6,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.80 : 11,779.60 = 4,567.30 : x
  2. Step 2: Convert to fraction form
    7,847.80/11,779.60 = 4,567.30/x
  3. Step 3: Cross multiply
    7,847.80x = 11,779.60 × 4,567.30
  4. Step 4: Simplify right side
    7,847.80x = 53,800,967.08
  5. Step 5: Solve for x
    x = 53,800,967.08/7,847.80
  6. Step 6: Final answer
    x = 6,855.55

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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.