Home / 14,150.40-21,225.60-7,808.10

Finding the Fourth Proportional to 14,150.40, 21,225.60 and 7,808.10

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Solution

The fourth proportional to 14,150.40, 21,225.60 and 7,808.10 is: 11,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,150.40 : 21,225.60 = 7,808.10 : x
  2. Step 2: Convert to fraction form
    14,150.40/21,225.60 = 7,808.10/x
  3. Step 3: Cross multiply
    14,150.40x = 21,225.60 × 7,808.10
  4. Step 4: Simplify right side
    14,150.40x = 165,731,607.36
  5. Step 5: Solve for x
    x = 165,731,607.36/14,150.40
  6. Step 6: Final answer
    x = 11,712.15

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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.