Home / 15,474.78-23,209.59-4,378.72

Finding the Fourth Proportional to 15,474.78, 23,209.59 and 4,378.72

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Solution

The fourth proportional to 15,474.78, 23,209.59 and 4,378.72 is: 6,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.78 : 23,209.59 = 4,378.72 : x
  2. Step 2: Convert to fraction form
    15,474.78/23,209.59 = 4,378.72/x
  3. Step 3: Cross multiply
    15,474.78x = 23,209.59 × 4,378.72
  4. Step 4: Simplify right side
    15,474.78x = 101,628,295.92
  5. Step 5: Solve for x
    x = 101,628,295.92/15,474.78
  6. Step 6: Final answer
    x = 6,567.35

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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.