Home / 8,275.80-11,420.76-4,739.01

Finding the Fourth Proportional to 8,275.80, 11,420.76 and 4,739.01

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Solution

The fourth proportional to 8,275.80, 11,420.76 and 4,739.01 is: 6,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.80 : 11,420.76 = 4,739.01 : x
  2. Step 2: Convert to fraction form
    8,275.80/11,420.76 = 4,739.01/x
  3. Step 3: Cross multiply
    8,275.80x = 11,420.76 × 4,739.01
  4. Step 4: Simplify right side
    8,275.80x = 54,123,070.79
  5. Step 5: Solve for x
    x = 54,123,070.79/8,275.80
  6. Step 6: Final answer
    x = 6,539.92

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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.