Home / 6,779.88-10,130.95-5,168.11

Finding the Fourth Proportional to 6,779.88, 10,130.95 and 5,168.11

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Solution

The fourth proportional to 6,779.88, 10,130.95 and 5,168.11 is: 7,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.88 : 10,130.95 = 5,168.11 : x
  2. Step 2: Convert to fraction form
    6,779.88/10,130.95 = 5,168.11/x
  3. Step 3: Cross multiply
    6,779.88x = 10,130.95 × 5,168.11
  4. Step 4: Simplify right side
    6,779.88x = 52,357,902.25
  5. Step 5: Solve for x
    x = 52,357,902.25/6,779.88
  6. Step 6: Final answer
    x = 7,722.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.