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Finding the Fourth Proportional to 8,888.94, 13,309.11 and 6,417.63

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Solution

The fourth proportional to 8,888.94, 13,309.11 and 6,417.63 is: 9,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.94 : 13,309.11 = 6,417.63 : x
  2. Step 2: Convert to fraction form
    8,888.94/13,309.11 = 6,417.63/x
  3. Step 3: Cross multiply
    8,888.94x = 13,309.11 × 6,417.63
  4. Step 4: Simplify right side
    8,888.94x = 85,412,943.61
  5. Step 5: Solve for x
    x = 85,412,943.61/8,888.94
  6. Step 6: Final answer
    x = 9,608.90

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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.