Home / 11,121.50-15,348.15-6,153.50

Finding the Fourth Proportional to 11,121.50, 15,348.15 and 6,153.50

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Solution

The fourth proportional to 11,121.50, 15,348.15 and 6,153.50 is: 8,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.50 : 15,348.15 = 6,153.50 : x
  2. Step 2: Convert to fraction form
    11,121.50/15,348.15 = 6,153.50/x
  3. Step 3: Cross multiply
    11,121.50x = 15,348.15 × 6,153.50
  4. Step 4: Simplify right side
    11,121.50x = 94,444,841.03
  5. Step 5: Solve for x
    x = 94,444,841.03/11,121.50
  6. Step 6: Final answer
    x = 8,492.10

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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.