Home / 8,715.84-13,090.56-7,469.25

Finding the Fourth Proportional to 8,715.84, 13,090.56 and 7,469.25

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Solution

The fourth proportional to 8,715.84, 13,090.56 and 7,469.25 is: 11,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.84 : 13,090.56 = 7,469.25 : x
  2. Step 2: Convert to fraction form
    8,715.84/13,090.56 = 7,469.25/x
  3. Step 3: Cross multiply
    8,715.84x = 13,090.56 × 7,469.25
  4. Step 4: Simplify right side
    8,715.84x = 97,776,665.28
  5. Step 5: Solve for x
    x = 97,776,665.28/8,715.84
  6. Step 6: Final answer
    x = 11,218.27

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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.