Home / 13,987.14-19,302.24-7,699.92

Finding the Fourth Proportional to 13,987.14, 19,302.24 and 7,699.92

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Solution

The fourth proportional to 13,987.14, 19,302.24 and 7,699.92 is: 10,625.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.14 : 19,302.24 = 7,699.92 : x
  2. Step 2: Convert to fraction form
    13,987.14/19,302.24 = 7,699.92/x
  3. Step 3: Cross multiply
    13,987.14x = 19,302.24 × 7,699.92
  4. Step 4: Simplify right side
    13,987.14x = 148,625,703.82
  5. Step 5: Solve for x
    x = 148,625,703.82/13,987.14
  6. Step 6: Final answer
    x = 10,625.88

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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.