Home / 12,520.26-18,784.32-7,528.38

Finding the Fourth Proportional to 12,520.26, 18,784.32 and 7,528.38

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Solution

The fourth proportional to 12,520.26, 18,784.32 and 7,528.38 is: 11,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.26 : 18,784.32 = 7,528.38 : x
  2. Step 2: Convert to fraction form
    12,520.26/18,784.32 = 7,528.38/x
  3. Step 3: Cross multiply
    12,520.26x = 18,784.32 × 7,528.38
  4. Step 4: Simplify right side
    12,520.26x = 141,415,499.00
  5. Step 5: Solve for x
    x = 141,415,499.00/12,520.26
  6. Step 6: Final answer
    x = 11,294.93

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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.