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Finding the Fourth Proportional to 8,750.50, 12,075.69 and 5,608.51

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Solution

The fourth proportional to 8,750.50, 12,075.69 and 5,608.51 is: 7,739.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.50 : 12,075.69 = 5,608.51 : x
  2. Step 2: Convert to fraction form
    8,750.50/12,075.69 = 5,608.51/x
  3. Step 3: Cross multiply
    8,750.50x = 12,075.69 × 5,608.51
  4. Step 4: Simplify right side
    8,750.50x = 67,726,628.12
  5. Step 5: Solve for x
    x = 67,726,628.12/8,750.50
  6. Step 6: Final answer
    x = 7,739.74

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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.