Home / 13,510.64-18,635.58-11,739.20

Finding the Fourth Proportional to 13,510.64, 18,635.58 and 11,739.20

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Solution

The fourth proportional to 13,510.64, 18,635.58 and 11,739.20 is: 16,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.64 : 18,635.58 = 11,739.20 : x
  2. Step 2: Convert to fraction form
    13,510.64/18,635.58 = 11,739.20/x
  3. Step 3: Cross multiply
    13,510.64x = 18,635.58 × 11,739.20
  4. Step 4: Simplify right side
    13,510.64x = 218,766,800.74
  5. Step 5: Solve for x
    x = 218,766,800.74/13,510.64
  6. Step 6: Final answer
    x = 16,192.19

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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.