Home / 13,250.10-18,279.96-7,581.81

Finding the Fourth Proportional to 13,250.10, 18,279.96 and 7,581.81

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Solution

The fourth proportional to 13,250.10, 18,279.96 and 7,581.81 is: 10,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.10 : 18,279.96 = 7,581.81 : x
  2. Step 2: Convert to fraction form
    13,250.10/18,279.96 = 7,581.81/x
  3. Step 3: Cross multiply
    13,250.10x = 18,279.96 × 7,581.81
  4. Step 4: Simplify right side
    13,250.10x = 138,595,183.53
  5. Step 5: Solve for x
    x = 138,595,183.53/13,250.10
  6. Step 6: Final answer
    x = 10,459.93

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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.