Home / 8,415.12-11,612.95-4,638.43

Finding the Fourth Proportional to 8,415.12, 11,612.95 and 4,638.43

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Solution

The fourth proportional to 8,415.12, 11,612.95 and 4,638.43 is: 6,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.12 : 11,612.95 = 4,638.43 : x
  2. Step 2: Convert to fraction form
    8,415.12/11,612.95 = 4,638.43/x
  3. Step 3: Cross multiply
    8,415.12x = 11,612.95 × 4,638.43
  4. Step 4: Simplify right side
    8,415.12x = 53,865,815.04
  5. Step 5: Solve for x
    x = 53,865,815.04/8,415.12
  6. Step 6: Final answer
    x = 6,401.08

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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.