Home / 8,465.06-11,683.08-5,278.88

Finding the Fourth Proportional to 8,465.06, 11,683.08 and 5,278.88

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Solution

The fourth proportional to 8,465.06, 11,683.08 and 5,278.88 is: 7,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.06 : 11,683.08 = 5,278.88 : x
  2. Step 2: Convert to fraction form
    8,465.06/11,683.08 = 5,278.88/x
  3. Step 3: Cross multiply
    8,465.06x = 11,683.08 × 5,278.88
  4. Step 4: Simplify right side
    8,465.06x = 61,673,492.54
  5. Step 5: Solve for x
    x = 61,673,492.54/8,465.06
  6. Step 6: Final answer
    x = 7,285.65

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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.