Home / 8,985.72-12,399.79-4,952.42

Finding the Fourth Proportional to 8,985.72, 12,399.79 and 4,952.42

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Solution

The fourth proportional to 8,985.72, 12,399.79 and 4,952.42 is: 6,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.72 : 12,399.79 = 4,952.42 : x
  2. Step 2: Convert to fraction form
    8,985.72/12,399.79 = 4,952.42/x
  3. Step 3: Cross multiply
    8,985.72x = 12,399.79 × 4,952.42
  4. Step 4: Simplify right side
    8,985.72x = 61,408,905.99
  5. Step 5: Solve for x
    x = 61,408,905.99/8,985.72
  6. Step 6: Final answer
    x = 6,834.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.