Home / 13,731.58-18,943.54-10,539.24

Finding the Fourth Proportional to 13,731.58, 18,943.54 and 10,539.24

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Solution

The fourth proportional to 13,731.58, 18,943.54 and 10,539.24 is: 14,539.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.58 : 18,943.54 = 10,539.24 : x
  2. Step 2: Convert to fraction form
    13,731.58/18,943.54 = 10,539.24/x
  3. Step 3: Cross multiply
    13,731.58x = 18,943.54 × 10,539.24
  4. Step 4: Simplify right side
    13,731.58x = 199,650,514.51
  5. Step 5: Solve for x
    x = 199,650,514.51/13,731.58
  6. Step 6: Final answer
    x = 14,539.52

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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.