Home / 14,689.85-20,273.25-8,317.57

Finding the Fourth Proportional to 14,689.85, 20,273.25 and 8,317.57

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Solution

The fourth proportional to 14,689.85, 20,273.25 and 8,317.57 is: 11,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.85 : 20,273.25 = 8,317.57 : x
  2. Step 2: Convert to fraction form
    14,689.85/20,273.25 = 8,317.57/x
  3. Step 3: Cross multiply
    14,689.85x = 20,273.25 × 8,317.57
  4. Step 4: Simplify right side
    14,689.85x = 168,624,156.51
  5. Step 5: Solve for x
    x = 168,624,156.51/14,689.85
  6. Step 6: Final answer
    x = 11,478.95

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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.