Home / 14,609.40-21,899.70-7,207.80

Finding the Fourth Proportional to 14,609.40, 21,899.70 and 7,207.80

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Solution

The fourth proportional to 14,609.40, 21,899.70 and 7,207.80 is: 10,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,609.40 : 21,899.70 = 7,207.80 : x
  2. Step 2: Convert to fraction form
    14,609.40/21,899.70 = 7,207.80/x
  3. Step 3: Cross multiply
    14,609.40x = 21,899.70 × 7,207.80
  4. Step 4: Simplify right side
    14,609.40x = 157,848,657.66
  5. Step 5: Solve for x
    x = 157,848,657.66/14,609.40
  6. Step 6: Final answer
    x = 10,804.60

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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.