Home / 15,235.84-21,025.62-8,948.32

Finding the Fourth Proportional to 15,235.84, 21,025.62 and 8,948.32

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Solution

The fourth proportional to 15,235.84, 21,025.62 and 8,948.32 is: 12,348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.84 : 21,025.62 = 8,948.32 : x
  2. Step 2: Convert to fraction form
    15,235.84/21,025.62 = 8,948.32/x
  3. Step 3: Cross multiply
    15,235.84x = 21,025.62 × 8,948.32
  4. Step 4: Simplify right side
    15,235.84x = 188,143,975.96
  5. Step 5: Solve for x
    x = 188,143,975.96/15,235.84
  6. Step 6: Final answer
    x = 12,348.78

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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.