Home / 12,501.72-17,254.77-8,031.12

Finding the Fourth Proportional to 12,501.72, 17,254.77 and 8,031.12

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Solution

The fourth proportional to 12,501.72, 17,254.77 and 8,031.12 is: 11,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.72 : 17,254.77 = 8,031.12 : x
  2. Step 2: Convert to fraction form
    12,501.72/17,254.77 = 8,031.12/x
  3. Step 3: Cross multiply
    12,501.72x = 17,254.77 × 8,031.12
  4. Step 4: Simplify right side
    12,501.72x = 138,575,128.44
  5. Step 5: Solve for x
    x = 138,575,128.44/12,501.72
  6. Step 6: Final answer
    x = 11,084.49

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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.