Home / 18,675.09-28,012.95-6,981.93

Finding the Fourth Proportional to 18,675.09, 28,012.95 and 6,981.93

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Solution

The fourth proportional to 18,675.09, 28,012.95 and 6,981.93 is: 10,473.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.09 : 28,012.95 = 6,981.93 : x
  2. Step 2: Convert to fraction form
    18,675.09/28,012.95 = 6,981.93/x
  3. Step 3: Cross multiply
    18,675.09x = 28,012.95 × 6,981.93
  4. Step 4: Simplify right side
    18,675.09x = 195,584,455.99
  5. Step 5: Solve for x
    x = 195,584,455.99/18,675.09
  6. Step 6: Final answer
    x = 10,473.01

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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.