Home / 13,972.50-19,272.29-9,190.94

Finding the Fourth Proportional to 13,972.50, 19,272.29 and 9,190.94

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Solution

The fourth proportional to 13,972.50, 19,272.29 and 9,190.94 is: 12,677.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.50 : 19,272.29 = 9,190.94 : x
  2. Step 2: Convert to fraction form
    13,972.50/19,272.29 = 9,190.94/x
  3. Step 3: Cross multiply
    13,972.50x = 19,272.29 × 9,190.94
  4. Step 4: Simplify right side
    13,972.50x = 177,130,318.74
  5. Step 5: Solve for x
    x = 177,130,318.74/13,972.50
  6. Step 6: Final answer
    x = 12,677.07

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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.