Home / 12,040.02-18,065.19-6,486.90

Finding the Fourth Proportional to 12,040.02, 18,065.19 and 6,486.90

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Solution

The fourth proportional to 12,040.02, 18,065.19 and 6,486.90 is: 9,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.02 : 18,065.19 = 6,486.90 : x
  2. Step 2: Convert to fraction form
    12,040.02/18,065.19 = 6,486.90/x
  3. Step 3: Cross multiply
    12,040.02x = 18,065.19 × 6,486.90
  4. Step 4: Simplify right side
    12,040.02x = 117,187,081.01
  5. Step 5: Solve for x
    x = 117,187,081.01/12,040.02
  6. Step 6: Final answer
    x = 9,733.13

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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.