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Finding the Fourth Proportional to 8,812.02, 13,212.51 and 4,649.40

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Solution

The fourth proportional to 8,812.02, 13,212.51 and 4,649.40 is: 6,971.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.02 : 13,212.51 = 4,649.40 : x
  2. Step 2: Convert to fraction form
    8,812.02/13,212.51 = 4,649.40/x
  3. Step 3: Cross multiply
    8,812.02x = 13,212.51 × 4,649.40
  4. Step 4: Simplify right side
    8,812.02x = 61,430,243.99
  5. Step 5: Solve for x
    x = 61,430,243.99/8,812.02
  6. Step 6: Final answer
    x = 6,971.19

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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.