Home / 8,432.09-11,639.56-7,546.35

Finding the Fourth Proportional to 8,432.09, 11,639.56 and 7,546.35

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Solution

The fourth proportional to 8,432.09, 11,639.56 and 7,546.35 is: 10,416.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.09 : 11,639.56 = 7,546.35 : x
  2. Step 2: Convert to fraction form
    8,432.09/11,639.56 = 7,546.35/x
  3. Step 3: Cross multiply
    8,432.09x = 11,639.56 × 7,546.35
  4. Step 4: Simplify right side
    8,432.09x = 87,836,193.61
  5. Step 5: Solve for x
    x = 87,836,193.61/8,432.09
  6. Step 6: Final answer
    x = 10,416.89

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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.