Home / 12,359.17-18,525.86-6,115.29

Finding the Fourth Proportional to 12,359.17, 18,525.86 and 6,115.29

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Solution

The fourth proportional to 12,359.17, 18,525.86 and 6,115.29 is: 9,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.17 : 18,525.86 = 6,115.29 : x
  2. Step 2: Convert to fraction form
    12,359.17/18,525.86 = 6,115.29/x
  3. Step 3: Cross multiply
    12,359.17x = 18,525.86 × 6,115.29
  4. Step 4: Simplify right side
    12,359.17x = 113,291,006.40
  5. Step 5: Solve for x
    x = 113,291,006.40/12,359.17
  6. Step 6: Final answer
    x = 9,166.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.