Home / 13,900.80-19,184.48-7,933.36

Finding the Fourth Proportional to 13,900.80, 19,184.48 and 7,933.36

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Solution

The fourth proportional to 13,900.80, 19,184.48 and 7,933.36 is: 10,948.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.80 : 19,184.48 = 7,933.36 : x
  2. Step 2: Convert to fraction form
    13,900.80/19,184.48 = 7,933.36/x
  3. Step 3: Cross multiply
    13,900.80x = 19,184.48 × 7,933.36
  4. Step 4: Simplify right side
    13,900.80x = 152,197,436.29
  5. Step 5: Solve for x
    x = 152,197,436.29/13,900.80
  6. Step 6: Final answer
    x = 10,948.82

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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.