Home / 12,261.12-18,401.09-8,702.99

Finding the Fourth Proportional to 12,261.12, 18,401.09 and 8,702.99

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Solution

The fourth proportional to 12,261.12, 18,401.09 and 8,702.99 is: 13,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.12 : 18,401.09 = 8,702.99 : x
  2. Step 2: Convert to fraction form
    12,261.12/18,401.09 = 8,702.99/x
  3. Step 3: Cross multiply
    12,261.12x = 18,401.09 × 8,702.99
  4. Step 4: Simplify right side
    12,261.12x = 160,144,366.74
  5. Step 5: Solve for x
    x = 160,144,366.74/12,261.12
  6. Step 6: Final answer
    x = 13,061.15

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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.