Home / 12,857.28-19,280.88-4,535.52

Finding the Fourth Proportional to 12,857.28, 19,280.88 and 4,535.52

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Solution

The fourth proportional to 12,857.28, 19,280.88 and 4,535.52 is: 6,801.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.28 : 19,280.88 = 4,535.52 : x
  2. Step 2: Convert to fraction form
    12,857.28/19,280.88 = 4,535.52/x
  3. Step 3: Cross multiply
    12,857.28x = 19,280.88 × 4,535.52
  4. Step 4: Simplify right side
    12,857.28x = 87,448,816.86
  5. Step 5: Solve for x
    x = 87,448,816.86/12,857.28
  6. Step 6: Final answer
    x = 6,801.50

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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.