Home / 13,226.13-18,252.63-7,919.93

Finding the Fourth Proportional to 13,226.13, 18,252.63 and 7,919.93

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Solution

The fourth proportional to 13,226.13, 18,252.63 and 7,919.93 is: 10,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.13 : 18,252.63 = 7,919.93 : x
  2. Step 2: Convert to fraction form
    13,226.13/18,252.63 = 7,919.93/x
  3. Step 3: Cross multiply
    13,226.13x = 18,252.63 × 7,919.93
  4. Step 4: Simplify right side
    13,226.13x = 144,559,597.55
  5. Step 5: Solve for x
    x = 144,559,597.55/13,226.13
  6. Step 6: Final answer
    x = 10,929.85

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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.