Home / 10,881.29-16,328.09-4,640.65

Finding the Fourth Proportional to 10,881.29, 16,328.09 and 4,640.65

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Solution

The fourth proportional to 10,881.29, 16,328.09 and 4,640.65 is: 6,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.29 : 16,328.09 = 4,640.65 : x
  2. Step 2: Convert to fraction form
    10,881.29/16,328.09 = 4,640.65/x
  3. Step 3: Cross multiply
    10,881.29x = 16,328.09 × 4,640.65
  4. Step 4: Simplify right side
    10,881.29x = 75,772,921.64
  5. Step 5: Solve for x
    x = 75,772,921.64/10,881.29
  6. Step 6: Final answer
    x = 6,963.60

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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.