Home / 13,987.54-19,302.06-8,018.92

Finding the Fourth Proportional to 13,987.54, 19,302.06 and 8,018.92

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Solution

The fourth proportional to 13,987.54, 19,302.06 and 8,018.92 is: 11,065.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.54 : 19,302.06 = 8,018.92 : x
  2. Step 2: Convert to fraction form
    13,987.54/19,302.06 = 8,018.92/x
  3. Step 3: Cross multiply
    13,987.54x = 19,302.06 × 8,018.92
  4. Step 4: Simplify right side
    13,987.54x = 154,781,674.98
  5. Step 5: Solve for x
    x = 154,781,674.98/13,987.54
  6. Step 6: Final answer
    x = 11,065.68

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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.