Home / 12,081.06-18,125.70-10,916.50

Finding the Fourth Proportional to 12,081.06, 18,125.70 and 10,916.50

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Solution

The fourth proportional to 12,081.06, 18,125.70 and 10,916.50 is: 16,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.06 : 18,125.70 = 10,916.50 : x
  2. Step 2: Convert to fraction form
    12,081.06/18,125.70 = 10,916.50/x
  3. Step 3: Cross multiply
    12,081.06x = 18,125.70 × 10,916.50
  4. Step 4: Simplify right side
    12,081.06x = 197,869,204.05
  5. Step 5: Solve for x
    x = 197,869,204.05/12,081.06
  6. Step 6: Final answer
    x = 16,378.46

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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.