Home / 8,530.08-11,771.60-5,172.16

Finding the Fourth Proportional to 8,530.08, 11,771.60 and 5,172.16

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Solution

The fourth proportional to 8,530.08, 11,771.60 and 5,172.16 is: 7,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.08 : 11,771.60 = 5,172.16 : x
  2. Step 2: Convert to fraction form
    8,530.08/11,771.60 = 5,172.16/x
  3. Step 3: Cross multiply
    8,530.08x = 11,771.60 × 5,172.16
  4. Step 4: Simplify right side
    8,530.08x = 60,884,598.66
  5. Step 5: Solve for x
    x = 60,884,598.66/8,530.08
  6. Step 6: Final answer
    x = 7,137.64

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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.