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Finding the Fourth Proportional to 9,356.98, 12,908.01 and 6,124.90

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Solution

The fourth proportional to 9,356.98, 12,908.01 and 6,124.90 is: 8,449.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,356.98 : 12,908.01 = 6,124.90 : x
  2. Step 2: Convert to fraction form
    9,356.98/12,908.01 = 6,124.90/x
  3. Step 3: Cross multiply
    9,356.98x = 12,908.01 × 6,124.90
  4. Step 4: Simplify right side
    9,356.98x = 79,060,270.45
  5. Step 5: Solve for x
    x = 79,060,270.45/9,356.98
  6. Step 6: Final answer
    x = 8,449.34

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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.