Home / 6,820.38-10,220.31-4,621.50

Finding the Fourth Proportional to 6,820.38, 10,220.31 and 4,621.50

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Solution

The fourth proportional to 6,820.38, 10,220.31 and 4,621.50 is: 6,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.38 : 10,220.31 = 4,621.50 : x
  2. Step 2: Convert to fraction form
    6,820.38/10,220.31 = 4,621.50/x
  3. Step 3: Cross multiply
    6,820.38x = 10,220.31 × 4,621.50
  4. Step 4: Simplify right side
    6,820.38x = 47,233,162.67
  5. Step 5: Solve for x
    x = 47,233,162.67/6,820.38
  6. Step 6: Final answer
    x = 6,925.30

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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.