Home / 18,784.74-28,177.38-8,925.03

Finding the Fourth Proportional to 18,784.74, 28,177.38 and 8,925.03

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Solution

The fourth proportional to 18,784.74, 28,177.38 and 8,925.03 is: 13,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.74 : 28,177.38 = 8,925.03 : x
  2. Step 2: Convert to fraction form
    18,784.74/28,177.38 = 8,925.03/x
  3. Step 3: Cross multiply
    18,784.74x = 28,177.38 × 8,925.03
  4. Step 4: Simplify right side
    18,784.74x = 251,483,961.82
  5. Step 5: Solve for x
    x = 251,483,961.82/18,784.74
  6. Step 6: Final answer
    x = 13,387.67

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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.