Home / 13,760.48-18,980.90-11,454.99

Finding the Fourth Proportional to 13,760.48, 18,980.90 and 11,454.99

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Solution

The fourth proportional to 13,760.48, 18,980.90 and 11,454.99 is: 15,800.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.48 : 18,980.90 = 11,454.99 : x
  2. Step 2: Convert to fraction form
    13,760.48/18,980.90 = 11,454.99/x
  3. Step 3: Cross multiply
    13,760.48x = 18,980.90 × 11,454.99
  4. Step 4: Simplify right side
    13,760.48x = 217,425,934.19
  5. Step 5: Solve for x
    x = 217,425,934.19/13,760.48
  6. Step 6: Final answer
    x = 15,800.75

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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.