Home / 15,953.36-22,021.32-11,479.76

Finding the Fourth Proportional to 15,953.36, 22,021.32 and 11,479.76

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Solution

The fourth proportional to 15,953.36, 22,021.32 and 11,479.76 is: 15,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,953.36 : 22,021.32 = 11,479.76 : x
  2. Step 2: Convert to fraction form
    15,953.36/22,021.32 = 11,479.76/x
  3. Step 3: Cross multiply
    15,953.36x = 22,021.32 × 11,479.76
  4. Step 4: Simplify right side
    15,953.36x = 252,799,468.48
  5. Step 5: Solve for x
    x = 252,799,468.48/15,953.36
  6. Step 6: Final answer
    x = 15,846.16

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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.