Home / 13,298.64-18,219.06-12,800.09

Finding the Fourth Proportional to 13,298.64, 18,219.06 and 12,800.09

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Solution

The fourth proportional to 13,298.64, 18,219.06 and 12,800.09 is: 17,536.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.64 : 18,219.06 = 12,800.09 : x
  2. Step 2: Convert to fraction form
    13,298.64/18,219.06 = 12,800.09/x
  3. Step 3: Cross multiply
    13,298.64x = 18,219.06 × 12,800.09
  4. Step 4: Simplify right side
    13,298.64x = 233,205,516.62
  5. Step 5: Solve for x
    x = 233,205,516.62/13,298.64
  6. Step 6: Final answer
    x = 17,536.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.