Home / 14,806.95-20,420.36-12,285.06

Finding the Fourth Proportional to 14,806.95, 20,420.36 and 12,285.06

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Solution

The fourth proportional to 14,806.95, 20,420.36 and 12,285.06 is: 16,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,806.95 : 20,420.36 = 12,285.06 : x
  2. Step 2: Convert to fraction form
    14,806.95/20,420.36 = 12,285.06/x
  3. Step 3: Cross multiply
    14,806.95x = 20,420.36 × 12,285.06
  4. Step 4: Simplify right side
    14,806.95x = 250,865,370.75
  5. Step 5: Solve for x
    x = 250,865,370.75/14,806.95
  6. Step 6: Final answer
    x = 16,942.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.