Home / 6,280.20-9,420.30-5,256.20

Finding the Fourth Proportional to 6,280.20, 9,420.30 and 5,256.20

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Solution

The fourth proportional to 6,280.20, 9,420.30 and 5,256.20 is: 7,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.20 : 9,420.30 = 5,256.20 : x
  2. Step 2: Convert to fraction form
    6,280.20/9,420.30 = 5,256.20/x
  3. Step 3: Cross multiply
    6,280.20x = 9,420.30 × 5,256.20
  4. Step 4: Simplify right side
    6,280.20x = 49,514,980.86
  5. Step 5: Solve for x
    x = 49,514,980.86/6,280.20
  6. Step 6: Final answer
    x = 7,884.30

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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.