Home / 18,716.40-25,828.46-10,332.88

Finding the Fourth Proportional to 18,716.40, 25,828.46 and 10,332.88

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Solution

The fourth proportional to 18,716.40, 25,828.46 and 10,332.88 is: 14,259.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.40 : 25,828.46 = 10,332.88 : x
  2. Step 2: Convert to fraction form
    18,716.40/25,828.46 = 10,332.88/x
  3. Step 3: Cross multiply
    18,716.40x = 25,828.46 × 10,332.88
  4. Step 4: Simplify right side
    18,716.40x = 266,882,377.76
  5. Step 5: Solve for x
    x = 266,882,377.76/18,716.40
  6. Step 6: Final answer
    x = 14,259.28

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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.