Home / 13,858.32-19,118.40-9,380.52

Finding the Fourth Proportional to 13,858.32, 19,118.40 and 9,380.52

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Solution

The fourth proportional to 13,858.32, 19,118.40 and 9,380.52 is: 12,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.32 : 19,118.40 = 9,380.52 : x
  2. Step 2: Convert to fraction form
    13,858.32/19,118.40 = 9,380.52/x
  3. Step 3: Cross multiply
    13,858.32x = 19,118.40 × 9,380.52
  4. Step 4: Simplify right side
    13,858.32x = 179,340,533.57
  5. Step 5: Solve for x
    x = 179,340,533.57/13,858.32
  6. Step 6: Final answer
    x = 12,941.00

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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.