Home / 13,215.58-19,784.48-8,822.14

Finding the Fourth Proportional to 13,215.58, 19,784.48 and 8,822.14

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Solution

The fourth proportional to 13,215.58, 19,784.48 and 8,822.14 is: 13,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.58 : 19,784.48 = 8,822.14 : x
  2. Step 2: Convert to fraction form
    13,215.58/19,784.48 = 8,822.14/x
  3. Step 3: Cross multiply
    13,215.58x = 19,784.48 × 8,822.14
  4. Step 4: Simplify right side
    13,215.58x = 174,541,358.82
  5. Step 5: Solve for x
    x = 174,541,358.82/13,215.58
  6. Step 6: Final answer
    x = 13,207.24

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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.