Home / 10,261.78-14,168.84-6,288.32

Finding the Fourth Proportional to 10,261.78, 14,168.84 and 6,288.32

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Solution

The fourth proportional to 10,261.78, 14,168.84 and 6,288.32 is: 8,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,261.78 : 14,168.84 = 6,288.32 : x
  2. Step 2: Convert to fraction form
    10,261.78/14,168.84 = 6,288.32/x
  3. Step 3: Cross multiply
    10,261.78x = 14,168.84 × 6,288.32
  4. Step 4: Simplify right side
    10,261.78x = 89,098,199.95
  5. Step 5: Solve for x
    x = 89,098,199.95/10,261.78
  6. Step 6: Final answer
    x = 8,682.53

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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.