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Finding the Fourth Proportional to 8,448.66, 12,655.98 and 7,075.71

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Solution

The fourth proportional to 8,448.66, 12,655.98 and 7,075.71 is: 10,599.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.66 : 12,655.98 = 7,075.71 : x
  2. Step 2: Convert to fraction form
    8,448.66/12,655.98 = 7,075.71/x
  3. Step 3: Cross multiply
    8,448.66x = 12,655.98 × 7,075.71
  4. Step 4: Simplify right side
    8,448.66x = 89,550,044.25
  5. Step 5: Solve for x
    x = 89,550,044.25/8,448.66
  6. Step 6: Final answer
    x = 10,599.32

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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.