Home / 10,361.12-14,298.34-5,645.40

Finding the Fourth Proportional to 10,361.12, 14,298.34 and 5,645.40

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Solution

The fourth proportional to 10,361.12, 14,298.34 and 5,645.40 is: 7,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361.12 : 14,298.34 = 5,645.40 : x
  2. Step 2: Convert to fraction form
    10,361.12/14,298.34 = 5,645.40/x
  3. Step 3: Cross multiply
    10,361.12x = 14,298.34 × 5,645.40
  4. Step 4: Simplify right side
    10,361.12x = 80,719,848.64
  5. Step 5: Solve for x
    x = 80,719,848.64/10,361.12
  6. Step 6: Final answer
    x = 7,790.65

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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.