Home / 10,261.12-14,168.64-7,111.84

Finding the Fourth Proportional to 10,261.12, 14,168.64 and 7,111.84

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Solution

The fourth proportional to 10,261.12, 14,168.64 and 7,111.84 is: 9,820.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,261.12 : 14,168.64 = 7,111.84 : x
  2. Step 2: Convert to fraction form
    10,261.12/14,168.64 = 7,111.84/x
  3. Step 3: Cross multiply
    10,261.12x = 14,168.64 × 7,111.84
  4. Step 4: Simplify right side
    10,261.12x = 100,765,100.70
  5. Step 5: Solve for x
    x = 100,765,100.70/10,261.12
  6. Step 6: Final answer
    x = 9,820.09

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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.