Home / 18,678.09-28,017.45-6,984.93

Finding the Fourth Proportional to 18,678.09, 28,017.45 and 6,984.93

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Solution

The fourth proportional to 18,678.09, 28,017.45 and 6,984.93 is: 10,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.09 : 28,017.45 = 6,984.93 : x
  2. Step 2: Convert to fraction form
    18,678.09/28,017.45 = 6,984.93/x
  3. Step 3: Cross multiply
    18,678.09x = 28,017.45 × 6,984.93
  4. Step 4: Simplify right side
    18,678.09x = 195,699,927.03
  5. Step 5: Solve for x
    x = 195,699,927.03/18,678.09
  6. Step 6: Final answer
    x = 10,477.51

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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.