Home / 11,001.40-16,502.10-7,110.20

Finding the Fourth Proportional to 11,001.40, 16,502.10 and 7,110.20

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Solution

The fourth proportional to 11,001.40, 16,502.10 and 7,110.20 is: 10,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.40 : 16,502.10 = 7,110.20 : x
  2. Step 2: Convert to fraction form
    11,001.40/16,502.10 = 7,110.20/x
  3. Step 3: Cross multiply
    11,001.40x = 16,502.10 × 7,110.20
  4. Step 4: Simplify right side
    11,001.40x = 117,333,231.42
  5. Step 5: Solve for x
    x = 117,333,231.42/11,001.40
  6. Step 6: Final answer
    x = 10,665.30

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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.