Home / 11,386.44-17,070.54-7,642.14

Finding the Fourth Proportional to 11,386.44, 17,070.54 and 7,642.14

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Solution

The fourth proportional to 11,386.44, 17,070.54 and 7,642.14 is: 11,457.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.44 : 17,070.54 = 7,642.14 : x
  2. Step 2: Convert to fraction form
    11,386.44/17,070.54 = 7,642.14/x
  3. Step 3: Cross multiply
    11,386.44x = 17,070.54 × 7,642.14
  4. Step 4: Simplify right side
    11,386.44x = 130,455,456.56
  5. Step 5: Solve for x
    x = 130,455,456.56/11,386.44
  6. Step 6: Final answer
    x = 11,457.09

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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.