Home / 13,488.28-20,232.42-4,255

Finding the Fourth Proportional to 13,488.28, 20,232.42 and 4,255

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Solution

The fourth proportional to 13,488.28, 20,232.42 and 4,255 is: 6,382.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.28 : 20,232.42 = 4,255 : x
  2. Step 2: Convert to fraction form
    13,488.28/20,232.42 = 4,255/x
  3. Step 3: Cross multiply
    13,488.28x = 20,232.42 × 4,255
  4. Step 4: Simplify right side
    13,488.28x = 86,088,947.10
  5. Step 5: Solve for x
    x = 86,088,947.10/13,488.28
  6. Step 6: Final answer
    x = 6,382.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.