Home / 8,276.80-11,421.12-4,740.16

Finding the Fourth Proportional to 8,276.80, 11,421.12 and 4,740.16

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Solution

The fourth proportional to 8,276.80, 11,421.12 and 4,740.16 is: 6,540.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.80 : 11,421.12 = 4,740.16 : x
  2. Step 2: Convert to fraction form
    8,276.80/11,421.12 = 4,740.16/x
  3. Step 3: Cross multiply
    8,276.80x = 11,421.12 × 4,740.16
  4. Step 4: Simplify right side
    8,276.80x = 54,137,936.18
  5. Step 5: Solve for x
    x = 54,137,936.18/8,276.80
  6. Step 6: Final answer
    x = 6,540.93

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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.