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Finding the Fourth Proportional to 25,994.40, 39,000.64 and 8,464.10

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Solution

The fourth proportional to 25,994.40, 39,000.64 and 8,464.10 is: 12,699.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,994.40 : 39,000.64 = 8,464.10 : x
  2. Step 2: Convert to fraction form
    25,994.40/39,000.64 = 8,464.10/x
  3. Step 3: Cross multiply
    25,994.40x = 39,000.64 × 8,464.10
  4. Step 4: Simplify right side
    25,994.40x = 330,105,317.02
  5. Step 5: Solve for x
    x = 330,105,317.02/25,994.40
  6. Step 6: Final answer
    x = 12,699.09

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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.