Home / 8,190.61-11,302.68-4,654.15

Finding the Fourth Proportional to 8,190.61, 11,302.68 and 4,654.15

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Solution

The fourth proportional to 8,190.61, 11,302.68 and 4,654.15 is: 6,422.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.61 : 11,302.68 = 4,654.15 : x
  2. Step 2: Convert to fraction form
    8,190.61/11,302.68 = 4,654.15/x
  3. Step 3: Cross multiply
    8,190.61x = 11,302.68 × 4,654.15
  4. Step 4: Simplify right side
    8,190.61x = 52,604,368.12
  5. Step 5: Solve for x
    x = 52,604,368.12/8,190.61
  6. Step 6: Final answer
    x = 6,422.52

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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.