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Finding the Fourth Proportional to 6,608.51, 9,913.98 and 5,386.76

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Solution

The fourth proportional to 6,608.51, 9,913.98 and 5,386.76 is: 8,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.51 : 9,913.98 = 5,386.76 : x
  2. Step 2: Convert to fraction form
    6,608.51/9,913.98 = 5,386.76/x
  3. Step 3: Cross multiply
    6,608.51x = 9,913.98 × 5,386.76
  4. Step 4: Simplify right side
    6,608.51x = 53,404,230.90
  5. Step 5: Solve for x
    x = 53,404,230.90/6,608.51
  6. Step 6: Final answer
    x = 8,081.13

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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.