Home / 13,008.37-17,951.40-7,039.90

Finding the Fourth Proportional to 13,008.37, 17,951.40 and 7,039.90

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Solution

The fourth proportional to 13,008.37, 17,951.40 and 7,039.90 is: 9,714.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.37 : 17,951.40 = 7,039.90 : x
  2. Step 2: Convert to fraction form
    13,008.37/17,951.40 = 7,039.90/x
  3. Step 3: Cross multiply
    13,008.37x = 17,951.40 × 7,039.90
  4. Step 4: Simplify right side
    13,008.37x = 126,376,060.86
  5. Step 5: Solve for x
    x = 126,376,060.86/13,008.37
  6. Step 6: Final answer
    x = 9,714.98

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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.