Home / 10,218.21-14,101.47-5,742.84

Finding the Fourth Proportional to 10,218.21, 14,101.47 and 5,742.84

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Solution

The fourth proportional to 10,218.21, 14,101.47 and 5,742.84 is: 7,925.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.21 : 14,101.47 = 5,742.84 : x
  2. Step 2: Convert to fraction form
    10,218.21/14,101.47 = 5,742.84/x
  3. Step 3: Cross multiply
    10,218.21x = 14,101.47 × 5,742.84
  4. Step 4: Simplify right side
    10,218.21x = 80,982,485.97
  5. Step 5: Solve for x
    x = 80,982,485.97/10,218.21
  6. Step 6: Final answer
    x = 7,925.31

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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.