Home / 12,668.03-19,005.89-8,977.40

Finding the Fourth Proportional to 12,668.03, 19,005.89 and 8,977.40

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Solution

The fourth proportional to 12,668.03, 19,005.89 and 8,977.40 is: 13,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.03 : 19,005.89 = 8,977.40 : x
  2. Step 2: Convert to fraction form
    12,668.03/19,005.89 = 8,977.40/x
  3. Step 3: Cross multiply
    12,668.03x = 19,005.89 × 8,977.40
  4. Step 4: Simplify right side
    12,668.03x = 170,623,476.89
  5. Step 5: Solve for x
    x = 170,623,476.89/12,668.03
  6. Step 6: Final answer
    x = 13,468.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.