Home / 15,558.40-21,498.56-11,825.92

Finding the Fourth Proportional to 15,558.40, 21,498.56 and 11,825.92

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Solution

The fourth proportional to 15,558.40, 21,498.56 and 11,825.92 is: 16,341.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.40 : 21,498.56 = 11,825.92 : x
  2. Step 2: Convert to fraction form
    15,558.40/21,498.56 = 11,825.92/x
  3. Step 3: Cross multiply
    15,558.40x = 21,498.56 × 11,825.92
  4. Step 4: Simplify right side
    15,558.40x = 254,240,250.68
  5. Step 5: Solve for x
    x = 254,240,250.68/15,558.40
  6. Step 6: Final answer
    x = 16,341.03

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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.