Home / 13,875.96-20,812.59-7,633.92

Finding the Fourth Proportional to 13,875.96, 20,812.59 and 7,633.92

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Solution

The fourth proportional to 13,875.96, 20,812.59 and 7,633.92 is: 11,450.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.96 : 20,812.59 = 7,633.92 : x
  2. Step 2: Convert to fraction form
    13,875.96/20,812.59 = 7,633.92/x
  3. Step 3: Cross multiply
    13,875.96x = 20,812.59 × 7,633.92
  4. Step 4: Simplify right side
    13,875.96x = 158,881,647.05
  5. Step 5: Solve for x
    x = 158,881,647.05/13,875.96
  6. Step 6: Final answer
    x = 11,450.14

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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.