Home / 13,177.02-18,187.54-7,874.98

Finding the Fourth Proportional to 13,177.02, 18,187.54 and 7,874.98

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Solution

The fourth proportional to 13,177.02, 18,187.54 and 7,874.98 is: 10,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.02 : 18,187.54 = 7,874.98 : x
  2. Step 2: Convert to fraction form
    13,177.02/18,187.54 = 7,874.98/x
  3. Step 3: Cross multiply
    13,177.02x = 18,187.54 × 7,874.98
  4. Step 4: Simplify right side
    13,177.02x = 143,226,513.75
  5. Step 5: Solve for x
    x = 143,226,513.75/13,177.02
  6. Step 6: Final answer
    x = 10,869.42

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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.