Home / 15,308.42-21,125.30-8,502.08

Finding the Fourth Proportional to 15,308.42, 21,125.30 and 8,502.08

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Solution

The fourth proportional to 15,308.42, 21,125.30 and 8,502.08 is: 11,732.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.42 : 21,125.30 = 8,502.08 : x
  2. Step 2: Convert to fraction form
    15,308.42/21,125.30 = 8,502.08/x
  3. Step 3: Cross multiply
    15,308.42x = 21,125.30 × 8,502.08
  4. Step 4: Simplify right side
    15,308.42x = 179,608,842.49
  5. Step 5: Solve for x
    x = 179,608,842.49/15,308.42
  6. Step 6: Final answer
    x = 11,732.69

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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.