Home / 18,967.68-28,450.80-5,117.04

Finding the Fourth Proportional to 18,967.68, 28,450.80 and 5,117.04

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Solution

The fourth proportional to 18,967.68, 28,450.80 and 5,117.04 is: 7,675.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.68 : 28,450.80 = 5,117.04 : x
  2. Step 2: Convert to fraction form
    18,967.68/28,450.80 = 5,117.04/x
  3. Step 3: Cross multiply
    18,967.68x = 28,450.80 × 5,117.04
  4. Step 4: Simplify right side
    18,967.68x = 145,583,881.63
  5. Step 5: Solve for x
    x = 145,583,881.63/18,967.68
  6. Step 6: Final answer
    x = 7,675.37

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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.