Home / 14,132.28-21,201.91-9,980.42

Finding the Fourth Proportional to 14,132.28, 21,201.91 and 9,980.42

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Solution

The fourth proportional to 14,132.28, 21,201.91 and 9,980.42 is: 14,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,132.28 : 21,201.91 = 9,980.42 : x
  2. Step 2: Convert to fraction form
    14,132.28/21,201.91 = 9,980.42/x
  3. Step 3: Cross multiply
    14,132.28x = 21,201.91 × 9,980.42
  4. Step 4: Simplify right side
    14,132.28x = 211,603,994.66
  5. Step 5: Solve for x
    x = 211,603,994.66/14,132.28
  6. Step 6: Final answer
    x = 14,973.10

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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.