Home / 10,625.15-15,939.63-8,668.13

Finding the Fourth Proportional to 10,625.15, 15,939.63 and 8,668.13

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Solution

The fourth proportional to 10,625.15, 15,939.63 and 8,668.13 is: 13,003.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,625.15 : 15,939.63 = 8,668.13 : x
  2. Step 2: Convert to fraction form
    10,625.15/15,939.63 = 8,668.13/x
  3. Step 3: Cross multiply
    10,625.15x = 15,939.63 × 8,668.13
  4. Step 4: Simplify right side
    10,625.15x = 138,166,784.99
  5. Step 5: Solve for x
    x = 138,166,784.99/10,625.15
  6. Step 6: Final answer
    x = 13,003.75

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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.