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Finding the Fourth Proportional to 6,988.33, 9,636.03 and 5,391.35

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Solution

The fourth proportional to 6,988.33, 9,636.03 and 5,391.35 is: 7,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.33 : 9,636.03 = 5,391.35 : x
  2. Step 2: Convert to fraction form
    6,988.33/9,636.03 = 5,391.35/x
  3. Step 3: Cross multiply
    6,988.33x = 9,636.03 × 5,391.35
  4. Step 4: Simplify right side
    6,988.33x = 51,951,210.34
  5. Step 5: Solve for x
    x = 51,951,210.34/6,988.33
  6. Step 6: Final answer
    x = 7,434.00

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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.