Home / 14,216.28-19,618.62-7,928.76

Finding the Fourth Proportional to 14,216.28, 19,618.62 and 7,928.76

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Solution

The fourth proportional to 14,216.28, 19,618.62 and 7,928.76 is: 10,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.28 : 19,618.62 = 7,928.76 : x
  2. Step 2: Convert to fraction form
    14,216.28/19,618.62 = 7,928.76/x
  3. Step 3: Cross multiply
    14,216.28x = 19,618.62 × 7,928.76
  4. Step 4: Simplify right side
    14,216.28x = 155,551,329.51
  5. Step 5: Solve for x
    x = 155,551,329.51/14,216.28
  6. Step 6: Final answer
    x = 10,941.77

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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.