Home / 9,939.30-13,710.12-5,903.39

Finding the Fourth Proportional to 9,939.30, 13,710.12 and 5,903.39

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Solution

The fourth proportional to 9,939.30, 13,710.12 and 5,903.39 is: 8,143.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.30 : 13,710.12 = 5,903.39 : x
  2. Step 2: Convert to fraction form
    9,939.30/13,710.12 = 5,903.39/x
  3. Step 3: Cross multiply
    9,939.30x = 13,710.12 × 5,903.39
  4. Step 4: Simplify right side
    9,939.30x = 80,936,116.76
  5. Step 5: Solve for x
    x = 80,936,116.76/9,939.30
  6. Step 6: Final answer
    x = 8,143.04

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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.