Home / 14,043.40-21,003.13-12,494.28

Finding the Fourth Proportional to 14,043.40, 21,003.13 and 12,494.28

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Solution

The fourth proportional to 14,043.40, 21,003.13 and 12,494.28 is: 18,686.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.40 : 21,003.13 = 12,494.28 : x
  2. Step 2: Convert to fraction form
    14,043.40/21,003.13 = 12,494.28/x
  3. Step 3: Cross multiply
    14,043.40x = 21,003.13 × 12,494.28
  4. Step 4: Simplify right side
    14,043.40x = 262,418,987.10
  5. Step 5: Solve for x
    x = 262,418,987.10/14,043.40
  6. Step 6: Final answer
    x = 18,686.29

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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.