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Finding the Fourth Proportional to 8,737.40, 13,075.32 and 7,158.44

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Solution

The fourth proportional to 8,737.40, 13,075.32 and 7,158.44 is: 10,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.40 : 13,075.32 = 7,158.44 : x
  2. Step 2: Convert to fraction form
    8,737.40/13,075.32 = 7,158.44/x
  3. Step 3: Cross multiply
    8,737.40x = 13,075.32 × 7,158.44
  4. Step 4: Simplify right side
    8,737.40x = 93,598,893.70
  5. Step 5: Solve for x
    x = 93,598,893.70/8,737.40
  6. Step 6: Final answer
    x = 10,712.44

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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.