Home / 11,857.02-17,875.55-11,221.98

Finding the Fourth Proportional to 11,857.02, 17,875.55 and 11,221.98

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Solution

The fourth proportional to 11,857.02, 17,875.55 and 11,221.98 is: 16,918.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,857.02 : 17,875.55 = 11,221.98 : x
  2. Step 2: Convert to fraction form
    11,857.02/17,875.55 = 11,221.98/x
  3. Step 3: Cross multiply
    11,857.02x = 17,875.55 × 11,221.98
  4. Step 4: Simplify right side
    11,857.02x = 200,599,008.48
  5. Step 5: Solve for x
    x = 200,599,008.48/11,857.02
  6. Step 6: Final answer
    x = 16,918.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.