Home / 12,390.06-17,098.11-7,675.50

Finding the Fourth Proportional to 12,390.06, 17,098.11 and 7,675.50

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Solution

The fourth proportional to 12,390.06, 17,098.11 and 7,675.50 is: 10,592.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390.06 : 17,098.11 = 7,675.50 : x
  2. Step 2: Convert to fraction form
    12,390.06/17,098.11 = 7,675.50/x
  3. Step 3: Cross multiply
    12,390.06x = 17,098.11 × 7,675.50
  4. Step 4: Simplify right side
    12,390.06x = 131,236,543.31
  5. Step 5: Solve for x
    x = 131,236,543.31/12,390.06
  6. Step 6: Final answer
    x = 10,592.08

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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.