Home / 6,779.20-10,168.80-6,552.40

Finding the Fourth Proportional to 6,779.20, 10,168.80 and 6,552.40

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Solution

The fourth proportional to 6,779.20, 10,168.80 and 6,552.40 is: 9,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.20 : 10,168.80 = 6,552.40 : x
  2. Step 2: Convert to fraction form
    6,779.20/10,168.80 = 6,552.40/x
  3. Step 3: Cross multiply
    6,779.20x = 10,168.80 × 6,552.40
  4. Step 4: Simplify right side
    6,779.20x = 66,630,045.12
  5. Step 5: Solve for x
    x = 66,630,045.12/6,779.20
  6. Step 6: Final answer
    x = 9,828.60

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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.