Home / 13,900.41-19,182.57-7,932.21

Finding the Fourth Proportional to 13,900.41, 19,182.57 and 7,932.21

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Solution

The fourth proportional to 13,900.41, 19,182.57 and 7,932.21 is: 10,946.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.41 : 19,182.57 = 7,932.21 : x
  2. Step 2: Convert to fraction form
    13,900.41/19,182.57 = 7,932.21/x
  3. Step 3: Cross multiply
    13,900.41x = 19,182.57 × 7,932.21
  4. Step 4: Simplify right side
    13,900.41x = 152,160,173.58
  5. Step 5: Solve for x
    x = 152,160,173.58/13,900.41
  6. Step 6: Final answer
    x = 10,946.45

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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.