Home / 10,666.72-14,719.60-6,190.12

Finding the Fourth Proportional to 10,666.72, 14,719.60 and 6,190.12

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Solution

The fourth proportional to 10,666.72, 14,719.60 and 6,190.12 is: 8,542.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.72 : 14,719.60 = 6,190.12 : x
  2. Step 2: Convert to fraction form
    10,666.72/14,719.60 = 6,190.12/x
  3. Step 3: Cross multiply
    10,666.72x = 14,719.60 × 6,190.12
  4. Step 4: Simplify right side
    10,666.72x = 91,116,090.35
  5. Step 5: Solve for x
    x = 91,116,090.35/10,666.72
  6. Step 6: Final answer
    x = 8,542.09

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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.