Home / 13,249.30-18,283.15-7,280.84

Finding the Fourth Proportional to 13,249.30, 18,283.15 and 7,280.84

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Solution

The fourth proportional to 13,249.30, 18,283.15 and 7,280.84 is: 10,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.30 : 18,283.15 = 7,280.84 : x
  2. Step 2: Convert to fraction form
    13,249.30/18,283.15 = 7,280.84/x
  3. Step 3: Cross multiply
    13,249.30x = 18,283.15 × 7,280.84
  4. Step 4: Simplify right side
    13,249.30x = 133,116,689.85
  5. Step 5: Solve for x
    x = 133,116,689.85/13,249.30
  6. Step 6: Final answer
    x = 10,047.07

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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.