Home / 10,085.18-13,919.07-7,261.88

Finding the Fourth Proportional to 10,085.18, 13,919.07 and 7,261.88

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Solution

The fourth proportional to 10,085.18, 13,919.07 and 7,261.88 is: 10,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.18 : 13,919.07 = 7,261.88 : x
  2. Step 2: Convert to fraction form
    10,085.18/13,919.07 = 7,261.88/x
  3. Step 3: Cross multiply
    10,085.18x = 13,919.07 × 7,261.88
  4. Step 4: Simplify right side
    10,085.18x = 101,078,616.05
  5. Step 5: Solve for x
    x = 101,078,616.05/10,085.18
  6. Step 6: Final answer
    x = 10,022.49

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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.