Home / 14,610.40-21,901.20-7,208.80

Finding the Fourth Proportional to 14,610.40, 21,901.20 and 7,208.80

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Solution

The fourth proportional to 14,610.40, 21,901.20 and 7,208.80 is: 10,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,610.40 : 21,901.20 = 7,208.80 : x
  2. Step 2: Convert to fraction form
    14,610.40/21,901.20 = 7,208.80/x
  3. Step 3: Cross multiply
    14,610.40x = 21,901.20 × 7,208.80
  4. Step 4: Simplify right side
    14,610.40x = 157,881,370.56
  5. Step 5: Solve for x
    x = 157,881,370.56/14,610.40
  6. Step 6: Final answer
    x = 10,806.10

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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.