Home / 42,360.78-63,540.09-11,196.30

Finding the Fourth Proportional to 42,360.78, 63,540.09 and 11,196.30

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Solution

The fourth proportional to 42,360.78, 63,540.09 and 11,196.30 is: 16,794.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,360.78 : 63,540.09 = 11,196.30 : x
  2. Step 2: Convert to fraction form
    42,360.78/63,540.09 = 11,196.30/x
  3. Step 3: Cross multiply
    42,360.78x = 63,540.09 × 11,196.30
  4. Step 4: Simplify right side
    42,360.78x = 711,413,909.67
  5. Step 5: Solve for x
    x = 711,413,909.67/42,360.78
  6. Step 6: Final answer
    x = 16,794.16

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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.