Home / 10,302.65-15,455.19-3,280.21

Finding the Fourth Proportional to 10,302.65, 15,455.19 and 3,280.21

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Solution

The fourth proportional to 10,302.65, 15,455.19 and 3,280.21 is: 4,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,302.65 : 15,455.19 = 3,280.21 : x
  2. Step 2: Convert to fraction form
    10,302.65/15,455.19 = 3,280.21/x
  3. Step 3: Cross multiply
    10,302.65x = 15,455.19 × 3,280.21
  4. Step 4: Simplify right side
    10,302.65x = 50,696,175.11
  5. Step 5: Solve for x
    x = 50,696,175.11/10,302.65
  6. Step 6: Final answer
    x = 4,920.69

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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.