Home / 15,441.57-21,307.07-8,727.15

Finding the Fourth Proportional to 15,441.57, 21,307.07 and 8,727.15

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Solution

The fourth proportional to 15,441.57, 21,307.07 and 8,727.15 is: 12,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.57 : 21,307.07 = 8,727.15 : x
  2. Step 2: Convert to fraction form
    15,441.57/21,307.07 = 8,727.15/x
  3. Step 3: Cross multiply
    15,441.57x = 21,307.07 × 8,727.15
  4. Step 4: Simplify right side
    15,441.57x = 185,949,952.31
  5. Step 5: Solve for x
    x = 185,949,952.31/15,441.57
  6. Step 6: Final answer
    x = 12,042.17

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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.