Home / 8,749.77-12,074.91-5,394.80

Finding the Fourth Proportional to 8,749.77, 12,074.91 and 5,394.80

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Solution

The fourth proportional to 8,749.77, 12,074.91 and 5,394.80 is: 7,444.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.77 : 12,074.91 = 5,394.80 : x
  2. Step 2: Convert to fraction form
    8,749.77/12,074.91 = 5,394.80/x
  3. Step 3: Cross multiply
    8,749.77x = 12,074.91 × 5,394.80
  4. Step 4: Simplify right side
    8,749.77x = 65,141,724.47
  5. Step 5: Solve for x
    x = 65,141,724.47/8,749.77
  6. Step 6: Final answer
    x = 7,444.96

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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.