Home / 10,954.68-15,117.39-6,480.65

Finding the Fourth Proportional to 10,954.68, 15,117.39 and 6,480.65

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Solution

The fourth proportional to 10,954.68, 15,117.39 and 6,480.65 is: 8,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,954.68 : 15,117.39 = 6,480.65 : x
  2. Step 2: Convert to fraction form
    10,954.68/15,117.39 = 6,480.65/x
  3. Step 3: Cross multiply
    10,954.68x = 15,117.39 × 6,480.65
  4. Step 4: Simplify right side
    10,954.68x = 97,970,437.92
  5. Step 5: Solve for x
    x = 97,970,437.92/10,954.68
  6. Step 6: Final answer
    x = 8,943.25

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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.