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Finding the Fourth Proportional to 8,985.79, 13,488.27 and 7,952.37

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Solution

The fourth proportional to 8,985.79, 13,488.27 and 7,952.37 is: 11,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.79 : 13,488.27 = 7,952.37 : x
  2. Step 2: Convert to fraction form
    8,985.79/13,488.27 = 7,952.37/x
  3. Step 3: Cross multiply
    8,985.79x = 13,488.27 × 7,952.37
  4. Step 4: Simplify right side
    8,985.79x = 107,263,646.26
  5. Step 5: Solve for x
    x = 107,263,646.26/8,985.79
  6. Step 6: Final answer
    x = 11,937.03

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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.