Home / 13,588.05-18,742.87-9,816.76

Finding the Fourth Proportional to 13,588.05, 18,742.87 and 9,816.76

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Solution

The fourth proportional to 13,588.05, 18,742.87 and 9,816.76 is: 13,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.05 : 18,742.87 = 9,816.76 : x
  2. Step 2: Convert to fraction form
    13,588.05/18,742.87 = 9,816.76/x
  3. Step 3: Cross multiply
    13,588.05x = 18,742.87 × 9,816.76
  4. Step 4: Simplify right side
    13,588.05x = 183,994,113.70
  5. Step 5: Solve for x
    x = 183,994,113.70/13,588.05
  6. Step 6: Final answer
    x = 13,540.88

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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.