Home / 7,620.76-10,513.56-4,634.20

Finding the Fourth Proportional to 7,620.76, 10,513.56 and 4,634.20

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Solution

The fourth proportional to 7,620.76, 10,513.56 and 4,634.20 is: 6,393.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.76 : 10,513.56 = 4,634.20 : x
  2. Step 2: Convert to fraction form
    7,620.76/10,513.56 = 4,634.20/x
  3. Step 3: Cross multiply
    7,620.76x = 10,513.56 × 4,634.20
  4. Step 4: Simplify right side
    7,620.76x = 48,721,939.75
  5. Step 5: Solve for x
    x = 48,721,939.75/7,620.76
  6. Step 6: Final answer
    x = 6,393.32

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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.