Home / 9,767.81-13,480.70-5,520.58

Finding the Fourth Proportional to 9,767.81, 13,480.70 and 5,520.58

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Solution

The fourth proportional to 9,767.81, 13,480.70 and 5,520.58 is: 7,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,767.81 : 13,480.70 = 5,520.58 : x
  2. Step 2: Convert to fraction form
    9,767.81/13,480.70 = 5,520.58/x
  3. Step 3: Cross multiply
    9,767.81x = 13,480.70 × 5,520.58
  4. Step 4: Simplify right side
    9,767.81x = 74,421,221.50
  5. Step 5: Solve for x
    x = 74,421,221.50/9,767.81
  6. Step 6: Final answer
    x = 7,619.03

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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.