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Finding the Fourth Proportional to 8,307.01, 12,460.47 and 2,758.81

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Solution

The fourth proportional to 8,307.01, 12,460.47 and 2,758.81 is: 4,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.01 : 12,460.47 = 2,758.81 : x
  2. Step 2: Convert to fraction form
    8,307.01/12,460.47 = 2,758.81/x
  3. Step 3: Cross multiply
    8,307.01x = 12,460.47 × 2,758.81
  4. Step 4: Simplify right side
    8,307.01x = 34,376,069.24
  5. Step 5: Solve for x
    x = 34,376,069.24/8,307.01
  6. Step 6: Final answer
    x = 4,138.20

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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.