Home / 9,638.10-13,302.09-6,984.54

Finding the Fourth Proportional to 9,638.10, 13,302.09 and 6,984.54

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Solution

The fourth proportional to 9,638.10, 13,302.09 and 6,984.54 is: 9,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,638.10 : 13,302.09 = 6,984.54 : x
  2. Step 2: Convert to fraction form
    9,638.10/13,302.09 = 6,984.54/x
  3. Step 3: Cross multiply
    9,638.10x = 13,302.09 × 6,984.54
  4. Step 4: Simplify right side
    9,638.10x = 92,908,979.69
  5. Step 5: Solve for x
    x = 92,908,979.69/9,638.10
  6. Step 6: Final answer
    x = 9,639.76

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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.