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Finding the Fourth Proportional to 12,788.16, 19,108.11 and 10,008.24

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Solution

The fourth proportional to 12,788.16, 19,108.11 and 10,008.24 is: 14,954.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.16 : 19,108.11 = 10,008.24 : x
  2. Step 2: Convert to fraction form
    12,788.16/19,108.11 = 10,008.24/x
  3. Step 3: Cross multiply
    12,788.16x = 19,108.11 × 10,008.24
  4. Step 4: Simplify right side
    12,788.16x = 191,238,550.83
  5. Step 5: Solve for x
    x = 191,238,550.83/12,788.16
  6. Step 6: Final answer
    x = 14,954.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.