Home / 19,612.60-27,051.70-12,896.08

Finding the Fourth Proportional to 19,612.60, 27,051.70 and 12,896.08

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Solution

The fourth proportional to 19,612.60, 27,051.70 and 12,896.08 is: 17,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.60 : 27,051.70 = 12,896.08 : x
  2. Step 2: Convert to fraction form
    19,612.60/27,051.70 = 12,896.08/x
  3. Step 3: Cross multiply
    19,612.60x = 27,051.70 × 12,896.08
  4. Step 4: Simplify right side
    19,612.60x = 348,860,887.34
  5. Step 5: Solve for x
    x = 348,860,887.34/19,612.60
  6. Step 6: Final answer
    x = 17,787.59

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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.