Home / 13,286.00-18,335.51-7,317.67

Finding the Fourth Proportional to 13,286.00, 18,335.51 and 7,317.67

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Solution

The fourth proportional to 13,286.00, 18,335.51 and 7,317.67 is: 10,098.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.00 : 18,335.51 = 7,317.67 : x
  2. Step 2: Convert to fraction form
    13,286.00/18,335.51 = 7,317.67/x
  3. Step 3: Cross multiply
    13,286.00x = 18,335.51 × 7,317.67
  4. Step 4: Simplify right side
    13,286.00x = 134,173,159.87
  5. Step 5: Solve for x
    x = 134,173,159.87/13,286.00
  6. Step 6: Final answer
    x = 10,098.84

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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.