Home / 10,855.17-14,963.81-8,493.21

Finding the Fourth Proportional to 10,855.17, 14,963.81 and 8,493.21

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Solution

The fourth proportional to 10,855.17, 14,963.81 and 8,493.21 is: 11,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.17 : 14,963.81 = 8,493.21 : x
  2. Step 2: Convert to fraction form
    10,855.17/14,963.81 = 8,493.21/x
  3. Step 3: Cross multiply
    10,855.17x = 14,963.81 × 8,493.21
  4. Step 4: Simplify right side
    10,855.17x = 127,090,738.26
  5. Step 5: Solve for x
    x = 127,090,738.26/10,855.17
  6. Step 6: Final answer
    x = 11,707.85

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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.