Home / 13,343.07-18,415.98-8,797.76

Finding the Fourth Proportional to 13,343.07, 18,415.98 and 8,797.76

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Solution

The fourth proportional to 13,343.07, 18,415.98 and 8,797.76 is: 12,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.07 : 18,415.98 = 8,797.76 : x
  2. Step 2: Convert to fraction form
    13,343.07/18,415.98 = 8,797.76/x
  3. Step 3: Cross multiply
    13,343.07x = 18,415.98 × 8,797.76
  4. Step 4: Simplify right side
    13,343.07x = 162,019,236.14
  5. Step 5: Solve for x
    x = 162,019,236.14/13,343.07
  6. Step 6: Final answer
    x = 12,142.58

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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.