Home / 12,255.15-18,384.77-9,622.55

Finding the Fourth Proportional to 12,255.15, 18,384.77 and 9,622.55

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Solution

The fourth proportional to 12,255.15, 18,384.77 and 9,622.55 is: 14,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.15 : 18,384.77 = 9,622.55 : x
  2. Step 2: Convert to fraction form
    12,255.15/18,384.77 = 9,622.55/x
  3. Step 3: Cross multiply
    12,255.15x = 18,384.77 × 9,622.55
  4. Step 4: Simplify right side
    12,255.15x = 176,908,335.17
  5. Step 5: Solve for x
    x = 176,908,335.17/12,255.15
  6. Step 6: Final answer
    x = 14,435.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.