Home / 13,204.19-18,215.67-7,611.95

Finding the Fourth Proportional to 13,204.19, 18,215.67 and 7,611.95

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Solution

The fourth proportional to 13,204.19, 18,215.67 and 7,611.95 is: 10,500.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.19 : 18,215.67 = 7,611.95 : x
  2. Step 2: Convert to fraction form
    13,204.19/18,215.67 = 7,611.95/x
  3. Step 3: Cross multiply
    13,204.19x = 18,215.67 × 7,611.95
  4. Step 4: Simplify right side
    13,204.19x = 138,656,678.18
  5. Step 5: Solve for x
    x = 138,656,678.18/13,204.19
  6. Step 6: Final answer
    x = 10,500.96

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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.