Home / 18,725.34-28,089.63-7,632.81

Finding the Fourth Proportional to 18,725.34, 28,089.63 and 7,632.81

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Solution

The fourth proportional to 18,725.34, 28,089.63 and 7,632.81 is: 11,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.34 : 28,089.63 = 7,632.81 : x
  2. Step 2: Convert to fraction form
    18,725.34/28,089.63 = 7,632.81/x
  3. Step 3: Cross multiply
    18,725.34x = 28,089.63 × 7,632.81
  4. Step 4: Simplify right side
    18,725.34x = 214,402,808.76
  5. Step 5: Solve for x
    x = 214,402,808.76/18,725.34
  6. Step 6: Final answer
    x = 11,449.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.