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Finding the Fourth Proportional to 8,655.24, 12,994.02 and 7,430.52

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Solution

The fourth proportional to 8,655.24, 12,994.02 and 7,430.52 is: 11,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.24 : 12,994.02 = 7,430.52 : x
  2. Step 2: Convert to fraction form
    8,655.24/12,994.02 = 7,430.52/x
  3. Step 3: Cross multiply
    8,655.24x = 12,994.02 × 7,430.52
  4. Step 4: Simplify right side
    8,655.24x = 96,552,325.49
  5. Step 5: Solve for x
    x = 96,552,325.49/8,655.24
  6. Step 6: Final answer
    x = 11,155.36

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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.