Home / 13,613.50-18,792.94-9,083.71

Finding the Fourth Proportional to 13,613.50, 18,792.94 and 9,083.71

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Solution

The fourth proportional to 13,613.50, 18,792.94 and 9,083.71 is: 12,539.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.50 : 18,792.94 = 9,083.71 : x
  2. Step 2: Convert to fraction form
    13,613.50/18,792.94 = 9,083.71/x
  3. Step 3: Cross multiply
    13,613.50x = 18,792.94 × 9,083.71
  4. Step 4: Simplify right side
    13,613.50x = 170,709,547.32
  5. Step 5: Solve for x
    x = 170,709,547.32/13,613.50
  6. Step 6: Final answer
    x = 12,539.73

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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.