Home / 13,051.88-18,011.40-7,083.56

Finding the Fourth Proportional to 13,051.88, 18,011.40 and 7,083.56

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Solution

The fourth proportional to 13,051.88, 18,011.40 and 7,083.56 is: 9,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,051.88 : 18,011.40 = 7,083.56 : x
  2. Step 2: Convert to fraction form
    13,051.88/18,011.40 = 7,083.56/x
  3. Step 3: Cross multiply
    13,051.88x = 18,011.40 × 7,083.56
  4. Step 4: Simplify right side
    13,051.88x = 127,584,832.58
  5. Step 5: Solve for x
    x = 127,584,832.58/13,051.88
  6. Step 6: Final answer
    x = 9,775.21

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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.