Home / 13,573.43-18,723.81-8,535.81

Finding the Fourth Proportional to 13,573.43, 18,723.81 and 8,535.81

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Solution

The fourth proportional to 13,573.43, 18,723.81 and 8,535.81 is: 11,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.43 : 18,723.81 = 8,535.81 : x
  2. Step 2: Convert to fraction form
    13,573.43/18,723.81 = 8,535.81/x
  3. Step 3: Cross multiply
    13,573.43x = 18,723.81 × 8,535.81
  4. Step 4: Simplify right side
    13,573.43x = 159,822,884.64
  5. Step 5: Solve for x
    x = 159,822,884.64/13,573.43
  6. Step 6: Final answer
    x = 11,774.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.