Home / 10,406.90-14,361.52-5,691.19

Finding the Fourth Proportional to 10,406.90, 14,361.52 and 5,691.19

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Solution

The fourth proportional to 10,406.90, 14,361.52 and 5,691.19 is: 7,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406.90 : 14,361.52 = 5,691.19 : x
  2. Step 2: Convert to fraction form
    10,406.90/14,361.52 = 5,691.19/x
  3. Step 3: Cross multiply
    10,406.90x = 14,361.52 × 5,691.19
  4. Step 4: Simplify right side
    10,406.90x = 81,734,038.75
  5. Step 5: Solve for x
    x = 81,734,038.75/10,406.90
  6. Step 6: Final answer
    x = 7,853.83

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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.