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Finding the Fourth Proportional to 8,717.01, 12,030.50 and 5,180.22

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Solution

The fourth proportional to 8,717.01, 12,030.50 and 5,180.22 is: 7,149.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.01 : 12,030.50 = 5,180.22 : x
  2. Step 2: Convert to fraction form
    8,717.01/12,030.50 = 5,180.22/x
  3. Step 3: Cross multiply
    8,717.01x = 12,030.50 × 5,180.22
  4. Step 4: Simplify right side
    8,717.01x = 62,320,610.81
  5. Step 5: Solve for x
    x = 62,320,610.81/8,717.01
  6. Step 6: Final answer
    x = 7,149.31

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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.