Home / 18,989.34-26,205.21-10,605.84

Finding the Fourth Proportional to 18,989.34, 26,205.21 and 10,605.84

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Solution

The fourth proportional to 18,989.34, 26,205.21 and 10,605.84 is: 14,636.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.34 : 26,205.21 = 10,605.84 : x
  2. Step 2: Convert to fraction form
    18,989.34/26,205.21 = 10,605.84/x
  3. Step 3: Cross multiply
    18,989.34x = 26,205.21 × 10,605.84
  4. Step 4: Simplify right side
    18,989.34x = 277,928,264.43
  5. Step 5: Solve for x
    x = 277,928,264.43/18,989.34
  6. Step 6: Final answer
    x = 14,636.01

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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.