Home / 12,588.86-17,371.94-6,999.50

Finding the Fourth Proportional to 12,588.86, 17,371.94 and 6,999.50

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Solution

The fourth proportional to 12,588.86, 17,371.94 and 6,999.50 is: 9,658.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.86 : 17,371.94 = 6,999.50 : x
  2. Step 2: Convert to fraction form
    12,588.86/17,371.94 = 6,999.50/x
  3. Step 3: Cross multiply
    12,588.86x = 17,371.94 × 6,999.50
  4. Step 4: Simplify right side
    12,588.86x = 121,594,894.03
  5. Step 5: Solve for x
    x = 121,594,894.03/12,588.86
  6. Step 6: Final answer
    x = 9,658.93

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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.