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Finding the Fourth Proportional to 8,637.24, 12,933.99 and 5,340.34

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Solution

The fourth proportional to 8,637.24, 12,933.99 and 5,340.34 is: 7,996.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.24 : 12,933.99 = 5,340.34 : x
  2. Step 2: Convert to fraction form
    8,637.24/12,933.99 = 5,340.34/x
  3. Step 3: Cross multiply
    8,637.24x = 12,933.99 × 5,340.34
  4. Step 4: Simplify right side
    8,637.24x = 69,071,904.16
  5. Step 5: Solve for x
    x = 69,071,904.16/8,637.24
  6. Step 6: Final answer
    x = 7,996.99

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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.