Home / 18,698.67-28,003.40-10,784.53

Finding the Fourth Proportional to 18,698.67, 28,003.40 and 10,784.53

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Solution

The fourth proportional to 18,698.67, 28,003.40 and 10,784.53 is: 16,151.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698.67 : 28,003.40 = 10,784.53 : x
  2. Step 2: Convert to fraction form
    18,698.67/28,003.40 = 10,784.53/x
  3. Step 3: Cross multiply
    18,698.67x = 28,003.40 × 10,784.53
  4. Step 4: Simplify right side
    18,698.67x = 302,003,507.40
  5. Step 5: Solve for x
    x = 302,003,507.40/18,698.67
  6. Step 6: Final answer
    x = 16,151.07

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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.