Home / 13,215.62-19,784.53-8,822.18

Finding the Fourth Proportional to 13,215.62, 19,784.53 and 8,822.18

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Solution

The fourth proportional to 13,215.62, 19,784.53 and 8,822.18 is: 13,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.62 : 19,784.53 = 8,822.18 : x
  2. Step 2: Convert to fraction form
    13,215.62/19,784.53 = 8,822.18/x
  3. Step 3: Cross multiply
    13,215.62x = 19,784.53 × 8,822.18
  4. Step 4: Simplify right side
    13,215.62x = 174,542,541.84
  5. Step 5: Solve for x
    x = 174,542,541.84/13,215.62
  6. Step 6: Final answer
    x = 13,207.30

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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.