Home / 9,928.50-13,707.76-6,155.69

Finding the Fourth Proportional to 9,928.50, 13,707.76 and 6,155.69

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Solution

The fourth proportional to 9,928.50, 13,707.76 and 6,155.69 is: 8,498.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.50 : 13,707.76 = 6,155.69 : x
  2. Step 2: Convert to fraction form
    9,928.50/13,707.76 = 6,155.69/x
  3. Step 3: Cross multiply
    9,928.50x = 13,707.76 × 6,155.69
  4. Step 4: Simplify right side
    9,928.50x = 84,380,637.23
  5. Step 5: Solve for x
    x = 84,380,637.23/9,928.50
  6. Step 6: Final answer
    x = 8,498.83

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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.