Home / 14,010.40-19,334.08-7,722.80

Finding the Fourth Proportional to 14,010.40, 19,334.08 and 7,722.80

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Solution

The fourth proportional to 14,010.40, 19,334.08 and 7,722.80 is: 10,657.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,010.40 : 19,334.08 = 7,722.80 : x
  2. Step 2: Convert to fraction form
    14,010.40/19,334.08 = 7,722.80/x
  3. Step 3: Cross multiply
    14,010.40x = 19,334.08 × 7,722.80
  4. Step 4: Simplify right side
    14,010.40x = 149,313,233.02
  5. Step 5: Solve for x
    x = 149,313,233.02/14,010.40
  6. Step 6: Final answer
    x = 10,657.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.