Home / 13,870.68-19,150.68-8,573.28

Finding the Fourth Proportional to 13,870.68, 19,150.68 and 8,573.28

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Solution

The fourth proportional to 13,870.68, 19,150.68 and 8,573.28 is: 11,836.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,870.68 : 19,150.68 = 8,573.28 : x
  2. Step 2: Convert to fraction form
    13,870.68/19,150.68 = 8,573.28/x
  3. Step 3: Cross multiply
    13,870.68x = 19,150.68 × 8,573.28
  4. Step 4: Simplify right side
    13,870.68x = 164,184,141.83
  5. Step 5: Solve for x
    x = 164,184,141.83/13,870.68
  6. Step 6: Final answer
    x = 11,836.78

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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.