Home / 12,823.48-17,690.32-8,345.60

Finding the Fourth Proportional to 12,823.48, 17,690.32 and 8,345.60

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Solution

The fourth proportional to 12,823.48, 17,690.32 and 8,345.60 is: 11,512.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,823.48 : 17,690.32 = 8,345.60 : x
  2. Step 2: Convert to fraction form
    12,823.48/17,690.32 = 8,345.60/x
  3. Step 3: Cross multiply
    12,823.48x = 17,690.32 × 8,345.60
  4. Step 4: Simplify right side
    12,823.48x = 147,636,334.59
  5. Step 5: Solve for x
    x = 147,636,334.59/12,823.48
  6. Step 6: Final answer
    x = 11,512.97

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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.