Home / 12,856.05-19,284.13-4,531.55

Finding the Fourth Proportional to 12,856.05, 19,284.13 and 4,531.55

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Solution

The fourth proportional to 12,856.05, 19,284.13 and 4,531.55 is: 6,797.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,856.05 : 19,284.13 = 4,531.55 : x
  2. Step 2: Convert to fraction form
    12,856.05/19,284.13 = 4,531.55/x
  3. Step 3: Cross multiply
    12,856.05x = 19,284.13 × 4,531.55
  4. Step 4: Simplify right side
    12,856.05x = 87,386,883.06
  5. Step 5: Solve for x
    x = 87,386,883.06/12,856.05
  6. Step 6: Final answer
    x = 6,797.34

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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.