Home / 12,853.50-19,281.78-4,531.79

Finding the Fourth Proportional to 12,853.50, 19,281.78 and 4,531.79

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Solution

The fourth proportional to 12,853.50, 19,281.78 and 4,531.79 is: 6,798.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,853.50 : 19,281.78 = 4,531.79 : x
  2. Step 2: Convert to fraction form
    12,853.50/19,281.78 = 4,531.79/x
  3. Step 3: Cross multiply
    12,853.50x = 19,281.78 × 4,531.79
  4. Step 4: Simplify right side
    12,853.50x = 87,380,881.38
  5. Step 5: Solve for x
    x = 87,380,881.38/12,853.50
  6. Step 6: Final answer
    x = 6,798.22

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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.