Home / 13,714.63-18,927.59-9,889.42

Finding the Fourth Proportional to 13,714.63, 18,927.59 and 9,889.42

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Solution

The fourth proportional to 13,714.63, 18,927.59 and 9,889.42 is: 13,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,714.63 : 18,927.59 = 9,889.42 : x
  2. Step 2: Convert to fraction form
    13,714.63/18,927.59 = 9,889.42/x
  3. Step 3: Cross multiply
    13,714.63x = 18,927.59 × 9,889.42
  4. Step 4: Simplify right side
    13,714.63x = 187,182,786.49
  5. Step 5: Solve for x
    x = 187,182,786.49/13,714.63
  6. Step 6: Final answer
    x = 13,648.40

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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.