Home / 10,995.65-15,174.77-6,215.63

Finding the Fourth Proportional to 10,995.65, 15,174.77 and 6,215.63

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Solution

The fourth proportional to 10,995.65, 15,174.77 and 6,215.63 is: 8,578.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.65 : 15,174.77 = 6,215.63 : x
  2. Step 2: Convert to fraction form
    10,995.65/15,174.77 = 6,215.63/x
  3. Step 3: Cross multiply
    10,995.65x = 15,174.77 × 6,215.63
  4. Step 4: Simplify right side
    10,995.65x = 94,320,755.66
  5. Step 5: Solve for x
    x = 94,320,755.66/10,995.65
  6. Step 6: Final answer
    x = 8,578.01

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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.