Home / 19,893.84-27,442.56-12,612.60

Finding the Fourth Proportional to 19,893.84, 27,442.56 and 12,612.60

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Solution

The fourth proportional to 19,893.84, 27,442.56 and 12,612.60 is: 17,398.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,893.84 : 27,442.56 = 12,612.60 : x
  2. Step 2: Convert to fraction form
    19,893.84/27,442.56 = 12,612.60/x
  3. Step 3: Cross multiply
    19,893.84x = 27,442.56 × 12,612.60
  4. Step 4: Simplify right side
    19,893.84x = 346,122,032.26
  5. Step 5: Solve for x
    x = 346,122,032.26/19,893.84
  6. Step 6: Final answer
    x = 17,398.45

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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.