Home / 15,358.58-21,196.56-8,645.84

Finding the Fourth Proportional to 15,358.58, 21,196.56 and 8,645.84

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Solution

The fourth proportional to 15,358.58, 21,196.56 and 8,645.84 is: 11,932.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358.58 : 21,196.56 = 8,645.84 : x
  2. Step 2: Convert to fraction form
    15,358.58/21,196.56 = 8,645.84/x
  3. Step 3: Cross multiply
    15,358.58x = 21,196.56 × 8,645.84
  4. Step 4: Simplify right side
    15,358.58x = 183,262,066.31
  5. Step 5: Solve for x
    x = 183,262,066.31/15,358.58
  6. Step 6: Final answer
    x = 11,932.23

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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.