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Finding the Fourth Proportional to 8,574.59, 12,852.77 and 4,129.49

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Solution

The fourth proportional to 8,574.59, 12,852.77 and 4,129.49 is: 6,189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.59 : 12,852.77 = 4,129.49 : x
  2. Step 2: Convert to fraction form
    8,574.59/12,852.77 = 4,129.49/x
  3. Step 3: Cross multiply
    8,574.59x = 12,852.77 × 4,129.49
  4. Step 4: Simplify right side
    8,574.59x = 53,075,300.28
  5. Step 5: Solve for x
    x = 53,075,300.28/8,574.59
  6. Step 6: Final answer
    x = 6,189.84

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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.