Home / 12,653.35-18,979.98-4,856.70

Finding the Fourth Proportional to 12,653.35, 18,979.98 and 4,856.70

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Solution

The fourth proportional to 12,653.35, 18,979.98 and 4,856.70 is: 7,285.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.35 : 18,979.98 = 4,856.70 : x
  2. Step 2: Convert to fraction form
    12,653.35/18,979.98 = 4,856.70/x
  3. Step 3: Cross multiply
    12,653.35x = 18,979.98 × 4,856.70
  4. Step 4: Simplify right side
    12,653.35x = 92,180,068.87
  5. Step 5: Solve for x
    x = 92,180,068.87/12,653.35
  6. Step 6: Final answer
    x = 7,285.03

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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.