Home / 12,512.08-17,261.49-8,038.45

Finding the Fourth Proportional to 12,512.08, 17,261.49 and 8,038.45

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Solution

The fourth proportional to 12,512.08, 17,261.49 and 8,038.45 is: 11,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.08 : 17,261.49 = 8,038.45 : x
  2. Step 2: Convert to fraction form
    12,512.08/17,261.49 = 8,038.45/x
  3. Step 3: Cross multiply
    12,512.08x = 17,261.49 × 8,038.45
  4. Step 4: Simplify right side
    12,512.08x = 138,755,624.29
  5. Step 5: Solve for x
    x = 138,755,624.29/12,512.08
  6. Step 6: Final answer
    x = 11,089.73

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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.