Home / 10,859.25-14,985.78-6,143.43

Finding the Fourth Proportional to 10,859.25, 14,985.78 and 6,143.43

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Solution

The fourth proportional to 10,859.25, 14,985.78 and 6,143.43 is: 8,477.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.25 : 14,985.78 = 6,143.43 : x
  2. Step 2: Convert to fraction form
    10,859.25/14,985.78 = 6,143.43/x
  3. Step 3: Cross multiply
    10,859.25x = 14,985.78 × 6,143.43
  4. Step 4: Simplify right side
    10,859.25x = 92,064,090.43
  5. Step 5: Solve for x
    x = 92,064,090.43/10,859.25
  6. Step 6: Final answer
    x = 8,477.94

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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.