Home / 15,494.04-21,381.84-9,206.28

Finding the Fourth Proportional to 15,494.04, 21,381.84 and 9,206.28

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Solution

The fourth proportional to 15,494.04, 21,381.84 and 9,206.28 is: 12,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,494.04 : 21,381.84 = 9,206.28 : x
  2. Step 2: Convert to fraction form
    15,494.04/21,381.84 = 9,206.28/x
  3. Step 3: Cross multiply
    15,494.04x = 21,381.84 × 9,206.28
  4. Step 4: Simplify right side
    15,494.04x = 196,847,205.96
  5. Step 5: Solve for x
    x = 196,847,205.96/15,494.04
  6. Step 6: Final answer
    x = 12,704.70

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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.