Home / 14,018.21-21,013.13-9,090.98

Finding the Fourth Proportional to 14,018.21, 21,013.13 and 9,090.98

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Solution

The fourth proportional to 14,018.21, 21,013.13 and 9,090.98 is: 13,627.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.21 : 21,013.13 = 9,090.98 : x
  2. Step 2: Convert to fraction form
    14,018.21/21,013.13 = 9,090.98/x
  3. Step 3: Cross multiply
    14,018.21x = 21,013.13 × 9,090.98
  4. Step 4: Simplify right side
    14,018.21x = 191,029,794.05
  5. Step 5: Solve for x
    x = 191,029,794.05/14,018.21
  6. Step 6: Final answer
    x = 13,627.26

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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.