Home / 14,103.78-21,156.06-4,108.13

Finding the Fourth Proportional to 14,103.78, 21,156.06 and 4,108.13

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Solution

The fourth proportional to 14,103.78, 21,156.06 and 4,108.13 is: 6,162.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.78 : 21,156.06 = 4,108.13 : x
  2. Step 2: Convert to fraction form
    14,103.78/21,156.06 = 4,108.13/x
  3. Step 3: Cross multiply
    14,103.78x = 21,156.06 × 4,108.13
  4. Step 4: Simplify right side
    14,103.78x = 86,911,844.77
  5. Step 5: Solve for x
    x = 86,911,844.77/14,103.78
  6. Step 6: Final answer
    x = 6,162.31

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1.5x scale

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.