Home / 9,781.74-14,647.68-5,394.36

Finding the Fourth Proportional to 9,781.74, 14,647.68 and 5,394.36

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Solution

The fourth proportional to 9,781.74, 14,647.68 and 5,394.36 is: 8,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781.74 : 14,647.68 = 5,394.36 : x
  2. Step 2: Convert to fraction form
    9,781.74/14,647.68 = 5,394.36/x
  3. Step 3: Cross multiply
    9,781.74x = 14,647.68 × 5,394.36
  4. Step 4: Simplify right side
    9,781.74x = 79,014,859.08
  5. Step 5: Solve for x
    x = 79,014,859.08/9,781.74
  6. Step 6: Final answer
    x = 8,077.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.