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Finding the Fourth Proportional to 12,465.35, 18,701.55 and 5,075.11

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Solution

The fourth proportional to 12,465.35, 18,701.55 and 5,075.11 is: 7,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.35 : 18,701.55 = 5,075.11 : x
  2. Step 2: Convert to fraction form
    12,465.35/18,701.55 = 5,075.11/x
  3. Step 3: Cross multiply
    12,465.35x = 18,701.55 × 5,075.11
  4. Step 4: Simplify right side
    12,465.35x = 94,912,423.42
  5. Step 5: Solve for x
    x = 94,912,423.42/12,465.35
  6. Step 6: Final answer
    x = 7,614.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.