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Finding the Fourth Proportional to 8,010.90, 12,014.55 and 5,256.90

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Solution

The fourth proportional to 8,010.90, 12,014.55 and 5,256.90 is: 7,884.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,010.90 : 12,014.55 = 5,256.90 : x
  2. Step 2: Convert to fraction form
    8,010.90/12,014.55 = 5,256.90/x
  3. Step 3: Cross multiply
    8,010.90x = 12,014.55 × 5,256.90
  4. Step 4: Simplify right side
    8,010.90x = 63,159,287.90
  5. Step 5: Solve for x
    x = 63,159,287.90/8,010.90
  6. Step 6: Final answer
    x = 7,884.17

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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.