Home / 12,385.02-17,091.36-7,079.98

Finding the Fourth Proportional to 12,385.02, 17,091.36 and 7,079.98

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Solution

The fourth proportional to 12,385.02, 17,091.36 and 7,079.98 is: 9,770.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.02 : 17,091.36 = 7,079.98 : x
  2. Step 2: Convert to fraction form
    12,385.02/17,091.36 = 7,079.98/x
  3. Step 3: Cross multiply
    12,385.02x = 17,091.36 × 7,079.98
  4. Step 4: Simplify right side
    12,385.02x = 121,006,486.97
  5. Step 5: Solve for x
    x = 121,006,486.97/12,385.02
  6. Step 6: Final answer
    x = 9,770.39

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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.