Home / 18,989.12-26,206.08-11,033.84

Finding the Fourth Proportional to 18,989.12, 26,206.08 and 11,033.84

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Solution

The fourth proportional to 18,989.12, 26,206.08 and 11,033.84 is: 15,227.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.12 : 26,206.08 = 11,033.84 : x
  2. Step 2: Convert to fraction form
    18,989.12/26,206.08 = 11,033.84/x
  3. Step 3: Cross multiply
    18,989.12x = 26,206.08 × 11,033.84
  4. Step 4: Simplify right side
    18,989.12x = 289,153,693.75
  5. Step 5: Solve for x
    x = 289,153,693.75/18,989.12
  6. Step 6: Final answer
    x = 15,227.34

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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.