Home / 13,289.16-18,338.84-7,320.83

Finding the Fourth Proportional to 13,289.16, 18,338.84 and 7,320.83

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Solution

The fourth proportional to 13,289.16, 18,338.84 and 7,320.83 is: 10,102.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.16 : 18,338.84 = 7,320.83 : x
  2. Step 2: Convert to fraction form
    13,289.16/18,338.84 = 7,320.83/x
  3. Step 3: Cross multiply
    13,289.16x = 18,338.84 × 7,320.83
  4. Step 4: Simplify right side
    13,289.16x = 134,255,497.96
  5. Step 5: Solve for x
    x = 134,255,497.96/13,289.16
  6. Step 6: Final answer
    x = 10,102.64

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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.