Home / 13,660.02-18,860.94-8,362.08

Finding the Fourth Proportional to 13,660.02, 18,860.94 and 8,362.08

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Solution

The fourth proportional to 13,660.02, 18,860.94 and 8,362.08 is: 11,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.02 : 18,860.94 = 8,362.08 : x
  2. Step 2: Convert to fraction form
    13,660.02/18,860.94 = 8,362.08/x
  3. Step 3: Cross multiply
    13,660.02x = 18,860.94 × 8,362.08
  4. Step 4: Simplify right side
    13,660.02x = 157,716,689.16
  5. Step 5: Solve for x
    x = 157,716,689.16/13,660.02
  6. Step 6: Final answer
    x = 11,545.86

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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.