Home / 12,281.76-18,426.78-4,884.26

Finding the Fourth Proportional to 12,281.76, 18,426.78 and 4,884.26

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Solution

The fourth proportional to 12,281.76, 18,426.78 and 4,884.26 is: 7,328.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.76 : 18,426.78 = 4,884.26 : x
  2. Step 2: Convert to fraction form
    12,281.76/18,426.78 = 4,884.26/x
  3. Step 3: Cross multiply
    12,281.76x = 18,426.78 × 4,884.26
  4. Step 4: Simplify right side
    12,281.76x = 90,001,092.35
  5. Step 5: Solve for x
    x = 90,001,092.35/12,281.76
  6. Step 6: Final answer
    x = 7,328.03

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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.