Home / 15,960.79-23,908.83-7,400.21

Finding the Fourth Proportional to 15,960.79, 23,908.83 and 7,400.21

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Solution

The fourth proportional to 15,960.79, 23,908.83 and 7,400.21 is: 11,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.79 : 23,908.83 = 7,400.21 : x
  2. Step 2: Convert to fraction form
    15,960.79/23,908.83 = 7,400.21/x
  3. Step 3: Cross multiply
    15,960.79x = 23,908.83 × 7,400.21
  4. Step 4: Simplify right side
    15,960.79x = 176,930,362.85
  5. Step 5: Solve for x
    x = 176,930,362.85/15,960.79
  6. Step 6: Final answer
    x = 11,085.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.