Home / 13,439.84-18,553.08-9,197.72

Finding the Fourth Proportional to 13,439.84, 18,553.08 and 9,197.72

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Solution

The fourth proportional to 13,439.84, 18,553.08 and 9,197.72 is: 12,697.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.84 : 18,553.08 = 9,197.72 : x
  2. Step 2: Convert to fraction form
    13,439.84/18,553.08 = 9,197.72/x
  3. Step 3: Cross multiply
    13,439.84x = 18,553.08 × 9,197.72
  4. Step 4: Simplify right side
    13,439.84x = 170,646,034.98
  5. Step 5: Solve for x
    x = 170,646,034.98/13,439.84
  6. Step 6: Final answer
    x = 12,697.03

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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.