Home / 13,632.35-18,811.98-7,664.58

Finding the Fourth Proportional to 13,632.35, 18,811.98 and 7,664.58

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Solution

The fourth proportional to 13,632.35, 18,811.98 and 7,664.58 is: 10,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.35 : 18,811.98 = 7,664.58 : x
  2. Step 2: Convert to fraction form
    13,632.35/18,811.98 = 7,664.58/x
  3. Step 3: Cross multiply
    13,632.35x = 18,811.98 × 7,664.58
  4. Step 4: Simplify right side
    13,632.35x = 144,185,925.67
  5. Step 5: Solve for x
    x = 144,185,925.67/13,632.35
  6. Step 6: Final answer
    x = 10,576.75

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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.