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Finding the Fourth Proportional to 10,703.70, 16,055.55 and 2,806.20

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Solution

The fourth proportional to 10,703.70, 16,055.55 and 2,806.20 is: 4,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,703.70 : 16,055.55 = 2,806.20 : x
  2. Step 2: Convert to fraction form
    10,703.70/16,055.55 = 2,806.20/x
  3. Step 3: Cross multiply
    10,703.70x = 16,055.55 × 2,806.20
  4. Step 4: Simplify right side
    10,703.70x = 45,055,084.41
  5. Step 5: Solve for x
    x = 45,055,084.41/10,703.70
  6. Step 6: Final answer
    x = 4,209.30

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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.