Home / 12,784.20-19,169.80-5,852.76

Finding the Fourth Proportional to 12,784.20, 19,169.80 and 5,852.76

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Solution

The fourth proportional to 12,784.20, 19,169.80 and 5,852.76 is: 8,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,784.20 : 19,169.80 = 5,852.76 : x
  2. Step 2: Convert to fraction form
    12,784.20/19,169.80 = 5,852.76/x
  3. Step 3: Cross multiply
    12,784.20x = 19,169.80 × 5,852.76
  4. Step 4: Simplify right side
    12,784.20x = 112,196,238.65
  5. Step 5: Solve for x
    x = 112,196,238.65/12,784.20
  6. Step 6: Final answer
    x = 8,776.16

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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.