Home / 7,977.47-11,008.44-4,620.05

Finding the Fourth Proportional to 7,977.47, 11,008.44 and 4,620.05

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Solution

The fourth proportional to 7,977.47, 11,008.44 and 4,620.05 is: 6,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.47 : 11,008.44 = 4,620.05 : x
  2. Step 2: Convert to fraction form
    7,977.47/11,008.44 = 4,620.05/x
  3. Step 3: Cross multiply
    7,977.47x = 11,008.44 × 4,620.05
  4. Step 4: Simplify right side
    7,977.47x = 50,859,543.22
  5. Step 5: Solve for x
    x = 50,859,543.22/7,977.47
  6. Step 6: Final answer
    x = 6,375.40

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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.