Home / 18,693.42-25,783.38-12,714.48

Finding the Fourth Proportional to 18,693.42, 25,783.38 and 12,714.48

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Solution

The fourth proportional to 18,693.42, 25,783.38 and 12,714.48 is: 17,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.42 : 25,783.38 = 12,714.48 : x
  2. Step 2: Convert to fraction form
    18,693.42/25,783.38 = 12,714.48/x
  3. Step 3: Cross multiply
    18,693.42x = 25,783.38 × 12,714.48
  4. Step 4: Simplify right side
    18,693.42x = 327,822,269.34
  5. Step 5: Solve for x
    x = 327,822,269.34/18,693.42
  6. Step 6: Final answer
    x = 17,536.77

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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.