Home / 8,284.52-12,430.04-3,090.80

Finding the Fourth Proportional to 8,284.52, 12,430.04 and 3,090.80

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Solution

The fourth proportional to 8,284.52, 12,430.04 and 3,090.80 is: 4,637.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.52 : 12,430.04 = 3,090.80 : x
  2. Step 2: Convert to fraction form
    8,284.52/12,430.04 = 3,090.80/x
  3. Step 3: Cross multiply
    8,284.52x = 12,430.04 × 3,090.80
  4. Step 4: Simplify right side
    8,284.52x = 38,418,767.63
  5. Step 5: Solve for x
    x = 38,418,767.63/8,284.52
  6. Step 6: Final answer
    x = 4,637.42

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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.