Home / 13,718.80-18,932.28-7,750.60

Finding the Fourth Proportional to 13,718.80, 18,932.28 and 7,750.60

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Solution

The fourth proportional to 13,718.80, 18,932.28 and 7,750.60 is: 10,696.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.80 : 18,932.28 = 7,750.60 : x
  2. Step 2: Convert to fraction form
    13,718.80/18,932.28 = 7,750.60/x
  3. Step 3: Cross multiply
    13,718.80x = 18,932.28 × 7,750.60
  4. Step 4: Simplify right side
    13,718.80x = 146,736,529.37
  5. Step 5: Solve for x
    x = 146,736,529.37/13,718.80
  6. Step 6: Final answer
    x = 10,696.02

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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.