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Finding the Fourth Proportional to 7,436.61, 11,156.61 and 4,319.22

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Solution

The fourth proportional to 7,436.61, 11,156.61 and 4,319.22 is: 6,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,436.61 : 11,156.61 = 4,319.22 : x
  2. Step 2: Convert to fraction form
    7,436.61/11,156.61 = 4,319.22/x
  3. Step 3: Cross multiply
    7,436.61x = 11,156.61 × 4,319.22
  4. Step 4: Simplify right side
    7,436.61x = 48,187,853.04
  5. Step 5: Solve for x
    x = 48,187,853.04/7,436.61
  6. Step 6: Final answer
    x = 6,479.81

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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.