Home / 8,749.68-13,118.04-5,286.12

Finding the Fourth Proportional to 8,749.68, 13,118.04 and 5,286.12

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Solution

The fourth proportional to 8,749.68, 13,118.04 and 5,286.12 is: 7,925.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.68 : 13,118.04 = 5,286.12 : x
  2. Step 2: Convert to fraction form
    8,749.68/13,118.04 = 5,286.12/x
  3. Step 3: Cross multiply
    8,749.68x = 13,118.04 × 5,286.12
  4. Step 4: Simplify right side
    8,749.68x = 69,343,533.60
  5. Step 5: Solve for x
    x = 69,343,533.60/8,749.68
  6. Step 6: Final answer
    x = 7,925.27

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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.