Home / 13,547.72-20,321.58-5,751.06

Finding the Fourth Proportional to 13,547.72, 20,321.58 and 5,751.06

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Solution

The fourth proportional to 13,547.72, 20,321.58 and 5,751.06 is: 8,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.72 : 20,321.58 = 5,751.06 : x
  2. Step 2: Convert to fraction form
    13,547.72/20,321.58 = 5,751.06/x
  3. Step 3: Cross multiply
    13,547.72x = 20,321.58 × 5,751.06
  4. Step 4: Simplify right side
    13,547.72x = 116,870,625.87
  5. Step 5: Solve for x
    x = 116,870,625.87/13,547.72
  6. Step 6: Final answer
    x = 8,626.59

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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.