Home / 15,479.92-21,367.74-9,192.25

Finding the Fourth Proportional to 15,479.92, 21,367.74 and 9,192.25

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Solution

The fourth proportional to 15,479.92, 21,367.74 and 9,192.25 is: 12,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.92 : 21,367.74 = 9,192.25 : x
  2. Step 2: Convert to fraction form
    15,479.92/21,367.74 = 9,192.25/x
  3. Step 3: Cross multiply
    15,479.92x = 21,367.74 × 9,192.25
  4. Step 4: Simplify right side
    15,479.92x = 196,417,608.02
  5. Step 5: Solve for x
    x = 196,417,608.02/15,479.92
  6. Step 6: Final answer
    x = 12,688.54

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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.