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Finding the Fourth Proportional to 8,810.54, 12,159.11 and 5,821.14

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Solution

The fourth proportional to 8,810.54, 12,159.11 and 5,821.14 is: 8,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.54 : 12,159.11 = 5,821.14 : x
  2. Step 2: Convert to fraction form
    8,810.54/12,159.11 = 5,821.14/x
  3. Step 3: Cross multiply
    8,810.54x = 12,159.11 × 5,821.14
  4. Step 4: Simplify right side
    8,810.54x = 70,779,852.48
  5. Step 5: Solve for x
    x = 70,779,852.48/8,810.54
  6. Step 6: Final answer
    x = 8,033.55

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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.