Home / 12,151.02-18,231.87-4,259.22

Finding the Fourth Proportional to 12,151.02, 18,231.87 and 4,259.22

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Solution

The fourth proportional to 12,151.02, 18,231.87 and 4,259.22 is: 6,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.02 : 18,231.87 = 4,259.22 : x
  2. Step 2: Convert to fraction form
    12,151.02/18,231.87 = 4,259.22/x
  3. Step 3: Cross multiply
    12,151.02x = 18,231.87 × 4,259.22
  4. Step 4: Simplify right side
    12,151.02x = 77,653,545.34
  5. Step 5: Solve for x
    x = 77,653,545.34/12,151.02
  6. Step 6: Final answer
    x = 6,390.70

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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.