Home / 15,784.08-21,761.82-12,941.16

Finding the Fourth Proportional to 15,784.08, 21,761.82 and 12,941.16

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Solution

The fourth proportional to 15,784.08, 21,761.82 and 12,941.16 is: 17,842.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784.08 : 21,761.82 = 12,941.16 : x
  2. Step 2: Convert to fraction form
    15,784.08/21,761.82 = 12,941.16/x
  3. Step 3: Cross multiply
    15,784.08x = 21,761.82 × 12,941.16
  4. Step 4: Simplify right side
    15,784.08x = 281,623,194.51
  5. Step 5: Solve for x
    x = 281,623,194.51/15,784.08
  6. Step 6: Final answer
    x = 17,842.23

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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.