Home / 12,280.58-18,430.14-9,844.80

Finding the Fourth Proportional to 12,280.58, 18,430.14 and 9,844.80

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Solution

The fourth proportional to 12,280.58, 18,430.14 and 9,844.80 is: 14,774.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.58 : 18,430.14 = 9,844.80 : x
  2. Step 2: Convert to fraction form
    12,280.58/18,430.14 = 9,844.80/x
  3. Step 3: Cross multiply
    12,280.58x = 18,430.14 × 9,844.80
  4. Step 4: Simplify right side
    12,280.58x = 181,441,042.27
  5. Step 5: Solve for x
    x = 181,441,042.27/12,280.58
  6. Step 6: Final answer
    x = 14,774.63

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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.