Home / 13,987.62-19,302.30-8,018.93

Finding the Fourth Proportional to 13,987.62, 19,302.30 and 8,018.93

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Solution

The fourth proportional to 13,987.62, 19,302.30 and 8,018.93 is: 11,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.62 : 19,302.30 = 8,018.93 : x
  2. Step 2: Convert to fraction form
    13,987.62/19,302.30 = 8,018.93/x
  3. Step 3: Cross multiply
    13,987.62x = 19,302.30 × 8,018.93
  4. Step 4: Simplify right side
    13,987.62x = 154,783,840.79
  5. Step 5: Solve for x
    x = 154,783,840.79/13,987.62
  6. Step 6: Final answer
    x = 11,065.77

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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.