Home / 15,482.94-21,355.57-9,517.90

Finding the Fourth Proportional to 15,482.94, 21,355.57 and 9,517.90

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Solution

The fourth proportional to 15,482.94, 21,355.57 and 9,517.90 is: 13,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,482.94 : 21,355.57 = 9,517.90 : x
  2. Step 2: Convert to fraction form
    15,482.94/21,355.57 = 9,517.90/x
  3. Step 3: Cross multiply
    15,482.94x = 21,355.57 × 9,517.90
  4. Step 4: Simplify right side
    15,482.94x = 203,260,179.70
  5. Step 5: Solve for x
    x = 203,260,179.70/15,482.94
  6. Step 6: Final answer
    x = 13,128.01

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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.