Home / 13,792.10-20,681.93-3,929.13

Finding the Fourth Proportional to 13,792.10, 20,681.93 and 3,929.13

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Solution

The fourth proportional to 13,792.10, 20,681.93 and 3,929.13 is: 5,891.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.10 : 20,681.93 = 3,929.13 : x
  2. Step 2: Convert to fraction form
    13,792.10/20,681.93 = 3,929.13/x
  3. Step 3: Cross multiply
    13,792.10x = 20,681.93 × 3,929.13
  4. Step 4: Simplify right side
    13,792.10x = 81,262,001.44
  5. Step 5: Solve for x
    x = 81,262,001.44/13,792.10
  6. Step 6: Final answer
    x = 5,891.93

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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.