Home / 13,792.04-20,689.28-4,428.65

Finding the Fourth Proportional to 13,792.04, 20,689.28 and 4,428.65

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Solution

The fourth proportional to 13,792.04, 20,689.28 and 4,428.65 is: 6,643.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.04 : 20,689.28 = 4,428.65 : x
  2. Step 2: Convert to fraction form
    13,792.04/20,689.28 = 4,428.65/x
  3. Step 3: Cross multiply
    13,792.04x = 20,689.28 × 4,428.65
  4. Step 4: Simplify right side
    13,792.04x = 91,625,454.28
  5. Step 5: Solve for x
    x = 91,625,454.28/13,792.04
  6. Step 6: Final answer
    x = 6,643.36

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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.