Home / 13,756.59-18,983.00-8,091.57

Finding the Fourth Proportional to 13,756.59, 18,983.00 and 8,091.57

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Solution

The fourth proportional to 13,756.59, 18,983.00 and 8,091.57 is: 11,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.59 : 18,983.00 = 8,091.57 : x
  2. Step 2: Convert to fraction form
    13,756.59/18,983.00 = 8,091.57/x
  3. Step 3: Cross multiply
    13,756.59x = 18,983.00 × 8,091.57
  4. Step 4: Simplify right side
    13,756.59x = 153,602,232.85
  5. Step 5: Solve for x
    x = 153,602,232.85/13,756.59
  6. Step 6: Final answer
    x = 11,165.72

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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.