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Finding the Fourth Proportional to 8,040.99, 12,062.40 and 7,214.19

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Solution

The fourth proportional to 8,040.99, 12,062.40 and 7,214.19 is: 10,822.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.99 : 12,062.40 = 7,214.19 : x
  2. Step 2: Convert to fraction form
    8,040.99/12,062.40 = 7,214.19/x
  3. Step 3: Cross multiply
    8,040.99x = 12,062.40 × 7,214.19
  4. Step 4: Simplify right side
    8,040.99x = 87,020,445.46
  5. Step 5: Solve for x
    x = 87,020,445.46/8,040.99
  6. Step 6: Final answer
    x = 10,822.11

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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.